add analytics via segment again

18 files changed, 0 insertions, 5964 deletions

diff --git a/vendor/github.com/davecgh/go-spew/spew/bypass.go b/vendor/github.com/davecgh/go-spew/spew/bypass.go
deleted file mode 100644
index 8a4a658..0000000
--- a/vendor/github.com/davecgh/go-spew/spew/bypass.go
+++ /dev/null
@@ -1,152 +0,0 @@
-// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when the code is not running on Google App Engine, compiled by GopherJS, and
-// "-tags safe" is not added to the go build command line.  The "disableunsafe"
-// tag is deprecated and thus should not be used.
-// +build !js,!appengine,!safe,!disableunsafe
-
-package spew
-
-import (
-	"reflect"
-	"unsafe"
-)
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = false
-
-	// ptrSize is the size of a pointer on the current arch.
-	ptrSize = unsafe.Sizeof((*byte)(nil))
-)
-
-var (
-	// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
-	// internal reflect.Value fields.  These values are valid before golang
-	// commit ecccf07e7f9d which changed the format.  The are also valid
-	// after commit 82f48826c6c7 which changed the format again to mirror
-	// the original format.  Code in the init function updates these offsets
-	// as necessary.
-	offsetPtr    = uintptr(ptrSize)
-	offsetScalar = uintptr(0)
-	offsetFlag   = uintptr(ptrSize * 2)
-
-	// flagKindWidth and flagKindShift indicate various bits that the
-	// reflect package uses internally to track kind information.
-	//
-	// flagRO indicates whether or not the value field of a reflect.Value is
-	// read-only.
-	//
-	// flagIndir indicates whether the value field of a reflect.Value is
-	// the actual data or a pointer to the data.
-	//
-	// These values are valid before golang commit 90a7c3c86944 which
-	// changed their positions.  Code in the init function updates these
-	// flags as necessary.
-	flagKindWidth = uintptr(5)
-	flagKindShift = uintptr(flagKindWidth - 1)
-	flagRO        = uintptr(1 << 0)
-	flagIndir     = uintptr(1 << 1)
-)
-
-func init() {
-	// Older versions of reflect.Value stored small integers directly in the
-	// ptr field (which is named val in the older versions).  Versions
-	// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
-	// scalar for this purpose which unfortunately came before the flag
-	// field, so the offset of the flag field is different for those
-	// versions.
-	//
-	// This code constructs a new reflect.Value from a known small integer
-	// and checks if the size of the reflect.Value struct indicates it has
-	// the scalar field. When it does, the offsets are updated accordingly.
-	vv := reflect.ValueOf(0xf00)
-	if unsafe.Sizeof(vv) == (ptrSize * 4) {
-		offsetScalar = ptrSize * 2
-		offsetFlag = ptrSize * 3
-	}
-
-	// Commit 90a7c3c86944 changed the flag positions such that the low
-	// order bits are the kind.  This code extracts the kind from the flags
-	// field and ensures it's the correct type.  When it's not, the flag
-	// order has been changed to the newer format, so the flags are updated
-	// accordingly.
-	upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
-	upfv := *(*uintptr)(upf)
-	flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
-	if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
-		flagKindShift = 0
-		flagRO = 1 << 5
-		flagIndir = 1 << 6
-
-		// Commit adf9b30e5594 modified the flags to separate the
-		// flagRO flag into two bits which specifies whether or not the
-		// field is embedded.  This causes flagIndir to move over a bit
-		// and means that flagRO is the combination of either of the
-		// original flagRO bit and the new bit.
-		//
-		// This code detects the change by extracting what used to be
-		// the indirect bit to ensure it's set.  When it's not, the flag
-		// order has been changed to the newer format, so the flags are
-		// updated accordingly.
-		if upfv&flagIndir == 0 {
-			flagRO = 3 << 5
-			flagIndir = 1 << 7
-		}
-	}
-}
-
-// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
-// the typical safety restrictions preventing access to unaddressable and
-// unexported data.  It works by digging the raw pointer to the underlying
-// value out of the protected value and generating a new unprotected (unsafe)
-// reflect.Value to it.
-//
-// This allows us to check for implementations of the Stringer and error
-// interfaces to be used for pretty printing ordinarily unaddressable and
-// inaccessible values such as unexported struct fields.
-func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
-	indirects := 1
-	vt := v.Type()
-	upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
-	rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
-	if rvf&flagIndir != 0 {
-		vt = reflect.PtrTo(v.Type())
-		indirects++
-	} else if offsetScalar != 0 {
-		// The value is in the scalar field when it's not one of the
-		// reference types.
-		switch vt.Kind() {
-		case reflect.Uintptr:
-		case reflect.Chan:
-		case reflect.Func:
-		case reflect.Map:
-		case reflect.Ptr:
-		case reflect.UnsafePointer:
-		default:
-			upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
-				offsetScalar)
-		}
-	}
-
-	pv := reflect.NewAt(vt, upv)
-	rv = pv
-	for i := 0; i < indirects; i++ {
-		rv = rv.Elem()
-	}
-	return rv
-}
diff --git a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
deleted file mode 100644
index 1fe3cf3..0000000
--- a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when the code is running on Google App Engine, compiled by GopherJS, or
-// "-tags safe" is added to the go build command line.  The "disableunsafe"
-// tag is deprecated and thus should not be used.
-// +build js appengine safe disableunsafe
-
-package spew
-
-import "reflect"
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = true
-)
-
-// unsafeReflectValue typically converts the passed reflect.Value into a one
-// that bypasses the typical safety restrictions preventing access to
-// unaddressable and unexported data.  However, doing this relies on access to
-// the unsafe package.  This is a stub version which simply returns the passed
-// reflect.Value when the unsafe package is not available.
-func unsafeReflectValue(v reflect.Value) reflect.Value {
-	return v
-}
diff --git a/vendor/github.com/davecgh/go-spew/spew/common.go b/vendor/github.com/davecgh/go-spew/spew/common.go
deleted file mode 100644
index 7c519ff..0000000
--- a/vendor/github.com/davecgh/go-spew/spew/common.go
+++ /dev/null
@@ -1,341 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"reflect"
-	"sort"
-	"strconv"
-)
-
-// Some constants in the form of bytes to avoid string overhead.  This mirrors
-// the technique used in the fmt package.
-var (
-	panicBytes            = []byte("(PANIC=")
-	plusBytes             = []byte("+")
-	iBytes                = []byte("i")
-	trueBytes             = []byte("true")
-	falseBytes            = []byte("false")
-	interfaceBytes        = []byte("(interface {})")
-	commaNewlineBytes     = []byte(",\n")
-	newlineBytes          = []byte("\n")
-	openBraceBytes        = []byte("{")
-	openBraceNewlineBytes = []byte("{\n")
-	closeBraceBytes       = []byte("}")
-	asteriskBytes         = []byte("*")
-	colonBytes            = []byte(":")
-	colonSpaceBytes       = []byte(": ")
-	openParenBytes        = []byte("(")
-	closeParenBytes       = []byte(")")
-	spaceBytes            = []byte(" ")
-	pointerChainBytes     = []byte("->")
-	nilAngleBytes         = []byte("<nil>")
-	maxNewlineBytes       = []byte("<max depth reached>\n")
-	maxShortBytes         = []byte("<max>")
-	circularBytes         = []byte("<already shown>")
-	circularShortBytes    = []byte("<shown>")
-	invalidAngleBytes     = []byte("<invalid>")
-	openBracketBytes      = []byte("[")
-	closeBracketBytes     = []byte("]")
-	percentBytes          = []byte("%")
-	precisionBytes        = []byte(".")
-	openAngleBytes        = []byte("<")
-	closeAngleBytes       = []byte(">")
-	openMapBytes          = []byte("map[")
-	closeMapBytes         = []byte("]")
-	lenEqualsBytes        = []byte("len=")
-	capEqualsBytes        = []byte("cap=")
-)
-
-// hexDigits is used to map a decimal value to a hex digit.
-var hexDigits = "0123456789abcdef"
-
-// catchPanic handles any panics that might occur during the handleMethods
-// calls.
-func catchPanic(w io.Writer, v reflect.Value) {
-	if err := recover(); err != nil {
-		w.Write(panicBytes)
-		fmt.Fprintf(w, "%v", err)
-		w.Write(closeParenBytes)
-	}
-}
-
-// handleMethods attempts to call the Error and String methods on the underlying
-// type the passed reflect.Value represents and outputes the result to Writer w.
-//
-// It handles panics in any called methods by catching and displaying the error
-// as the formatted value.
-func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
-	// We need an interface to check if the type implements the error or
-	// Stringer interface.  However, the reflect package won't give us an
-	// interface on certain things like unexported struct fields in order
-	// to enforce visibility rules.  We use unsafe, when it's available,
-	// to bypass these restrictions since this package does not mutate the
-	// values.
-	if !v.CanInterface() {
-		if UnsafeDisabled {
-			return false
-		}
-
-		v = unsafeReflectValue(v)
-	}
-
-	// Choose whether or not to do error and Stringer interface lookups against
-	// the base type or a pointer to the base type depending on settings.
-	// Technically calling one of these methods with a pointer receiver can
-	// mutate the value, however, types which choose to satisify an error or
-	// Stringer interface with a pointer receiver should not be mutating their
-	// state inside these interface methods.
-	if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
-		v = unsafeReflectValue(v)
-	}
-	if v.CanAddr() {
-		v = v.Addr()
-	}
-
-	// Is it an error or Stringer?
-	switch iface := v.Interface().(type) {
-	case error:
-		defer catchPanic(w, v)
-		if cs.ContinueOnMethod {
-			w.Write(openParenBytes)
-			w.Write([]byte(iface.Error()))
-			w.Write(closeParenBytes)
-			w.Write(spaceBytes)
-			return false
-		}
-
-		w.Write([]byte(iface.Error()))
-		return true
-
-	case fmt.Stringer:
-		defer catchPanic(w, v)
-		if cs.ContinueOnMethod {
-			w.Write(openParenBytes)
-			w.Write([]byte(iface.String()))
-			w.Write(closeParenBytes)
-			w.Write(spaceBytes)
-			return false
-		}
-		w.Write([]byte(iface.String()))
-		return true
-	}
-	return false
-}
-
-// printBool outputs a boolean value as true or false to Writer w.
-func printBool(w io.Writer, val bool) {
-	if val {
-		w.Write(trueBytes)
-	} else {
-		w.Write(falseBytes)
-	}
-}
-
-// printInt outputs a signed integer value to Writer w.
-func printInt(w io.Writer, val int64, base int) {
-	w.Write([]byte(strconv.FormatInt(val, base)))
-}
-
-// printUint outputs an unsigned integer value to Writer w.
-func printUint(w io.Writer, val uint64, base int) {
-	w.Write([]byte(strconv.FormatUint(val, base)))
-}
-
-// printFloat outputs a floating point value using the specified precision,
-// which is expected to be 32 or 64bit, to Writer w.
-func printFloat(w io.Writer, val float64, precision int) {
-	w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
-}
-
-// printComplex outputs a complex value using the specified float precision
-// for the real and imaginary parts to Writer w.
-func printComplex(w io.Writer, c complex128, floatPrecision int) {
-	r := real(c)
-	w.Write(openParenBytes)
-	w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
-	i := imag(c)
-	if i >= 0 {
-		w.Write(plusBytes)
-	}
-	w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
-	w.Write(iBytes)
-	w.Write(closeParenBytes)
-}
-
-// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
-// prefix to Writer w.
-func printHexPtr(w io.Writer, p uintptr) {
-	// Null pointer.
-	num := uint64(p)
-	if num == 0 {
-		w.Write(nilAngleBytes)
-		return
-	}
-
-	// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
-	buf := make([]byte, 18)
-
-	// It's simpler to construct the hex string right to left.
-	base := uint64(16)
-	i := len(buf) - 1
-	for num >= base {
-		buf[i] = hexDigits[num%base]
-		num /= base
-		i--
-	}
-	buf[i] = hexDigits[num]
-
-	// Add '0x' prefix.
-	i--
-	buf[i] = 'x'
-	i--
-	buf[i] = '0'
-
-	// Strip unused leading bytes.
-	buf = buf[i:]
-	w.Write(buf)
-}
-
-// valuesSorter implements sort.Interface to allow a slice of reflect.Value
-// elements to be sorted.
-type valuesSorter struct {
-	values  []reflect.Value
-	strings []string // either nil or same len and values
-	cs      *ConfigState
-}
-
-// newValuesSorter initializes a valuesSorter instance, which holds a set of
-// surrogate keys on which the data should be sorted.  It uses flags in
-// ConfigState to decide if and how to populate those surrogate keys.
-func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
-	vs := &valuesSorter{values: values, cs: cs}
-	if canSortSimply(vs.values[0].Kind()) {
-		return vs
-	}
-	if !cs.DisableMethods {
-		vs.strings = make([]string, len(values))
-		for i := range vs.values {
-			b := bytes.Buffer{}
-			if !handleMethods(cs, &b, vs.values[i]) {
-				vs.strings = nil
-				break
-			}
-			vs.strings[i] = b.String()
-		}
-	}
-	if vs.strings == nil && cs.SpewKeys {
-		vs.strings = make([]string, len(values))
-		for i := range vs.values {
-			vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
-		}
-	}
-	return vs
-}
-
-// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
-// directly, or whether it should be considered for sorting by surrogate keys
-// (if the ConfigState allows it).
-func canSortSimply(kind reflect.Kind) bool {
-	// This switch parallels valueSortLess, except for the default case.
-	switch kind {
-	case reflect.Bool:
-		return true
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		return true
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		return true
-	case reflect.Float32, reflect.Float64:
-		return true
-	case reflect.String:
-		return true
-	case reflect.Uintptr:
-		return true
-	case reflect.Array:
-		return true
-	}
-	return false
-}
-
-// Len returns the number of values in the slice.  It is part of the
-// sort.Interface implementation.
-func (s *valuesSorter) Len() int {
-	return len(s.values)
-}
-
-// Swap swaps the values at the passed indices.  It is part of the
-// sort.Interface implementation.
-func (s *valuesSorter) Swap(i, j int) {
-	s.values[i], s.values[j] = s.values[j], s.values[i]
-	if s.strings != nil {
-		s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
-	}
-}
-
-// valueSortLess returns whether the first value should sort before the second
-// value.  It is used by valueSorter.Less as part of the sort.Interface
-// implementation.
-func valueSortLess(a, b reflect.Value) bool {
-	switch a.Kind() {
-	case reflect.Bool:
-		return !a.Bool() && b.Bool()
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		return a.Int() < b.Int()
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		return a.Uint() < b.Uint()
-	case reflect.Float32, reflect.Float64:
-		return a.Float() < b.Float()
-	case reflect.String:
-		return a.String() < b.String()
-	case reflect.Uintptr:
-		return a.Uint() < b.Uint()
-	case reflect.Array:
-		// Compare the contents of both arrays.
-		l := a.Len()
-		for i := 0; i < l; i++ {
-			av := a.Index(i)
-			bv := b.Index(i)
-			if av.Interface() == bv.Interface() {
-				continue
-			}
-			return valueSortLess(av, bv)
-		}
-	}
-	return a.String() < b.String()
-}
-
-// Less returns whether the value at index i should sort before the
-// value at index j.  It is part of the sort.Interface implementation.
-func (s *valuesSorter) Less(i, j int) bool {
-	if s.strings == nil {
-		return valueSortLess(s.values[i], s.values[j])
-	}
-	return s.strings[i] < s.strings[j]
-}
-
-// sortValues is a sort function that handles both native types and any type that
-// can be converted to error or Stringer.  Other inputs are sorted according to
-// their Value.String() value to ensure display stability.
-func sortValues(values []reflect.Value, cs *ConfigState) {
-	if len(values) == 0 {
-		return
-	}
-	sort.Sort(newValuesSorter(values, cs))
-}
diff --git a/vendor/github.com/davecgh/go-spew/spew/common_test.go b/vendor/github.com/davecgh/go-spew/spew/common_test.go
deleted file mode 100644
index 0f5ce47..0000000
--- a/vendor/github.com/davecgh/go-spew/spew/common_test.go
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew_test
-
-import (
-	"fmt"
-	"reflect"
-	"testing"
-
-	"github.com/davecgh/go-spew/spew"
-)
-
-// custom type to test Stinger interface on non-pointer receiver.
-type stringer string
-
-// String implements the Stringer interface for testing invocation of custom
-// stringers on types with non-pointer receivers.
-func (s stringer) String() string {
-	return "stringer " + string(s)
-}
-
-// custom type to test Stinger interface on pointer receiver.
-type pstringer string
-
-// String implements the Stringer interface for testing invocation of custom
-// stringers on types with only pointer receivers.
-func (s *pstringer) String() string {
-	return "stringer " + string(*s)
-}
-
-// xref1 and xref2 are cross referencing structs for testing circular reference
-// detection.
-type xref1 struct {
-	ps2 *xref2
-}
-type xref2 struct {
-	ps1 *xref1
-}
-
-// indirCir1, indirCir2, and indirCir3 are used to generate an indirect circular
-// reference for testing detection.
-type indirCir1 struct {
-	ps2 *indirCir2
-}
-type indirCir2 struct {
-	ps3 *indirCir3
-}
-type indirCir3 struct {
-	ps1 *indirCir1
-}
-
-// embed is used to test embedded structures.
-type embed struct {
-	a string
-}
-
-// embedwrap is used to test embedded structures.
-type embedwrap struct {
-	*embed
-	e *embed
-}
-
-// panicer is used to intentionally cause a panic for testing spew properly
-// handles them
-type panicer int
-
-func (p panicer) String() string {
-	panic("test panic")
-}
-
-// customError is used to test custom error interface invocation.
-type customError int
-
-func (e customError) Error() string {
-	return fmt.Sprintf("error: %d", int(e))
-}
-
-// stringizeWants converts a slice of wanted test output into a format suitable
-// for a test error message.
-func stringizeWants(wants []string) string {
-	s := ""
-	for i, want := range wants {
-		if i > 0 {
-			s += fmt.Sprintf("want%d: %s", i+1, want)
-		} else {
-			s += "want: " + want
-		}
-	}
-	return s
-}
-
-// testFailed returns whether or not a test failed by checking if the result
-// of the test is in the slice of wanted strings.
-func testFailed(result string, wants []string) bool {
-	for _, want := range wants {
-		if result == want {
-			return false
-		}
-	}
-	return true
-}
-
-type sortableStruct struct {
-	x int
-}
-
-func (ss sortableStruct) String() string {
-	return fmt.Sprintf("ss.%d", ss.x)
-}
-
-type unsortableStruct struct {
-	x int
-}
-
-type sortTestCase struct {
-	input    []reflect.Value
-	expected []reflect.Value
-}
-
-func helpTestSortValues(tests []sortTestCase, cs *spew.ConfigState, t *testing.T) {
-	getInterfaces := func(values []reflect.Value) []interface{} {
-		interfaces := []interface{}{}
-		for _, v := range values {
-			interfaces = append(interfaces, v.Interface())
-		}
-		return interfaces
-	}
-
-	for _, test := range tests {
-		spew.SortValues(test.input, cs)
-		// reflect.DeepEqual cannot really make sense of reflect.Value,
-		// probably because of all the pointer tricks. For instance,
-		// v(2.0) != v(2.0) on a 32-bits system. Turn them into interface{}
-		// instead.
-		input := getInterfaces(test.input)
-		expected := getInterfaces(test.expected)
-		if !reflect.DeepEqual(input, expected) {
-			t.Errorf("Sort mismatch:\n %v != %v", input, expected)
-		}
-	}
-}
-
-// TestSortValues ensures the sort functionality for relect.Value based sorting
-// works as intended.
-func TestSortValues(t *testing.T) {
-	v := reflect.ValueOf
-
-	a := v("a")
-	b := v("b")
-	c := v("c")
-	embedA := v(embed{"a"})
-	embedB := v(embed{"b"})
-	embedC := v(embed{"c"})
-	tests := []sortTestCase{
-		// No values.
-		{
-			[]reflect.Value{},
-			[]reflect.Value{},
-		},
-		// Bools.
-		{
-			[]reflect.Value{v(false), v(true), v(false)},
-			[]reflect.Value{v(false), v(false), v(true)},
-		},
-		// Ints.
-		{
-			[]reflect.Value{v(2), v(1), v(3)},
-			[]reflect.Value{v(1), v(2), v(3)},
-		},
-		// Uints.
-		{
-			[]reflect.Value{v(uint8(2)), v(uint8(1)), v(uint8(3))},
-			[]reflect.Value{v(uint8(1)), v(uint8(2)), v(uint8(3))},
-		},
-		// Floats.
-		{
-			[]reflect.Value{v(2.0), v(1.0), v(3.0)},
-			[]reflect.Value{v(1.0), v(2.0), v(3.0)},
-		},
-		// Strings.
-		{
-			[]reflect.Value{b, a, c},
-			[]reflect.Value{a, b, c},
-		},
-		// Array
-		{
-			[]reflect.Value{v([3]int{3, 2, 1}), v([3]int{1, 3, 2}), v([3]int{1, 2, 3})},
-			[]reflect.Value{v([3]int{1, 2, 3}), v([3]int{1, 3, 2}), v([3]int{3, 2, 1})},
-		},
-		// Uintptrs.
-		{
-			[]reflect.Value{v(uintptr(2)), v(uintptr(1)), v(uintptr(3))},
-			[]reflect.Value{v(uintptr(1)), v(uintptr(2)), v(uintptr(3))},
-		},
-		// SortableStructs.
-		{
-			// Note: not sorted - DisableMethods is set.
-			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
-			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
-		},
-		// UnsortableStructs.
-		{
-			// Note: not sorted - SpewKeys is false.
-			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
-			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
-		},
-		// Invalid.
-		{
-			[]reflect.Value{embedB, embedA, embedC},
-			[]reflect.Value{embedB, embedA, embedC},
-		},
-	}
-	cs := spew.ConfigState{DisableMethods: true, SpewKeys: false}
-	helpTestSortValues(tests, &cs, t)
-}
-
-// TestSortValuesWithMethods ensures the sort functionality for relect.Value
-// based sorting works as intended when using string methods.
-func TestSortValuesWithMethods(t *testing.T) {
-	v := reflect.ValueOf
-
-	a := v("a")
-	b := v("b")
-	c := v("c")
-	tests := []sortTestCase{
-		// Ints.
-		{
-			[]reflect.Value{v(2), v(1), v(3)},
-			[]reflect.Value{v(1), v(2), v(3)},
-		},
-		// Strings.
-		{
-			[]reflect.Value{b, a, c},
-			[]reflect.Value{a, b, c},
-		},
-		// SortableStructs.
-		{
-			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
-			[]reflect.Value{v(sortableStruct{1}), v(sortableStruct{2}), v(sortableStruct{3})},
-		},
-		// UnsortableStructs.
-		{
-			// Note: not sorted - SpewKeys is false.
-			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
-			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
-		},
-	}
-	cs := spew.ConfigState{DisableMethods: false, SpewKeys: false}
-	helpTestSortValues(tests, &cs, t)
-}
-
-// TestSortValuesWithSpew ensures the sort functionality for relect.Value
-// based sorting works as intended when using spew to stringify keys.
-func TestSortValuesWithSpew(t *testing.T) {
-	v := reflect.ValueOf
-
-	a := v("a")
-	b := v("b")
-	c := v("c")
-	tests := []sortTestCase{
-		// Ints.
-		{
-			[]reflect.Value{v(2), v(1), v(3)},
-			[]reflect.Value{v(1), v(2), v(3)},
-		},
-		// Strings.
-		{
-			[]reflect.Value{b, a, c},
-			[]reflect.Value{a, b, c},
-		},
-		// SortableStructs.
-		{
-			[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
-			[]reflect.Value{v(sortableStruct{1}), v(sortableStruct{2}), v(sortableStruct{3})},
-		},
-		// UnsortableStructs.
-		{
-			[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
-			[]reflect.Value{v(unsortableStruct{1}), v(unsortableStruct{2}), v(unsortableStruct{3})},
-		},
-	}
-	cs := spew.ConfigState{DisableMethods: true, SpewKeys: true}
-	helpTestSortValues(tests, &cs, t)
-}
diff --git a/vendor/github.com/davecgh/go-spew/spew/config.go b/vendor/github.com/davecgh/go-spew/spew/config.go
deleted file mode 100644
index 2e3d22f..0000000
--- a/vendor/github.com/davecgh/go-spew/spew/config.go
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-)
-
-// ConfigState houses the configuration options used by spew to format and
-// display values.  There is a global instance, Config, that is used to control
-// all top-level Formatter and Dump functionality.  Each ConfigState instance
-// provides methods equivalent to the top-level functions.
-//
-// The zero value for ConfigState provides no indentation.  You would typically
-// want to set it to a space or a tab.