Fixing go1.7 compatability issues (#122)

.travis.yml

 language: go
 go:
   - 1.6
-#  - tip # broken for 1.7
+  - tip
 sudo: false
 #notifications:
 #  slack:

vendor/github.com/zond/gotomic/list.go

@@ -67,7 +67,7 @@ func (self *List) Pop() (rval Thing, ok bool) {
 
 /*
  Each will run i on each element.
- 
+
  It returns true if the iteration was interrupted.
  This is the case when one of the ListIterator calls returned true, indicating
  the iteration should be stopped.
@@ -113,8 +113,8 @@ type element struct {
 	/*
 	 The next element in the list. If this pointer has the deleted flag set it means THIS element, not the next one, is deleted.
 	*/
-	unsafe.Pointer
-	value Thing
+	Pointer unsafe.Pointer
+	value   Thing
 }
 
 func (self *element) next() *element {
@@ -122,7 +122,7 @@ func (self *element) next() *element {
 	for next != nil {
 		nextElement := (*element)(next)
 		/*
-		 If our next element contains &deletedElement that means WE are deleted, and 
+		 If our next element contains &deletedElement that means WE are deleted, and
 		 we can just return the next-next element. It will make it impossible to add
 		 stuff to us, since we will always lie about our next(), but then again, deleted
 		 elements shouldn't get new children anyway.

vendor/github.com/zond/gotomic/stm.go

 package gotomic
 
 import (
+	"bytes"
 	"fmt"
 	"sort"
 	"sync/atomic"
-	"bytes"
 	"unsafe"
 )
 
@@ -32,7 +32,7 @@ type Handle struct {
 	/*
 	 Will point to a version.
 	*/
-	unsafe.Pointer
+	Pointer unsafe.Pointer
 }
 
 /*
@@ -101,10 +101,10 @@ func (self writes) Less(i, j int) bool {
 
  It has a few tweaks that I don't believe break it (but I haven't even tried proving it):
 
- 1) It has an ever increasing counter for the last transaction to commit. 
+ 1) It has an ever increasing counter for the last transaction to commit.
 
- It uses this counter to fail transactions fast when they try to read a value that another 
- transaction has changed since the first transaction began. 
+ It uses this counter to fail transactions fast when they try to read a value that another
+ transaction has changed since the first transaction began.
 
  2) It copies the data not only on write opening, but also on read opening.
 

vendor/vendor.json

@@ -45,10 +45,10 @@
 			"revisionTime": "2015-11-24T22:32:07Z"
 		},
 		{
-			"checksumSHA1": "+o8IunxLKImqyhMUgJ4FCkRIAhA=",
+			"checksumSHA1": "0JL5ZeTzdHwXRYojBJHC06AnnBs=",
 			"path": "github.com/zond/gotomic",
-			"revision": "5b217c5578228ff3979c9f9459959176fb54c388",
-			"revisionTime": "2013-07-06T14:15:31Z"
+			"revision": "25c7c0a9f89b58b13a08c2bb531363fa117159c2",
+			"revisionTime": "2016-06-26T07:37:22Z"
 		},
 		{
 			"checksumSHA1": "9jjO5GjLa0XF/nfWihF02RoH4qc=",