Update Travis to test multiple golang versions.

.travis.yml

diff --git a/.travis.yml b/.travis.yml
index 10f469a..0bf43fc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,10 @@
 language: go
-go: 1.2
+go:
+    - 1.5.4
+    - 1.6.3
+    - 1.7
 install:
-    - go get -v code.google.com/p/go.tools/cmd/cover
+    - go get -v golang.org/x/tools/cmd/cover
 script:
     - go test -v -tags=disableunsafe ./spew
     - go test -v -tags=testcgo ./spew -covermode=count -coverprofile=profile.cov

spew/dumpcgo_test.go

diff --git a/spew/dumpcgo_test.go b/spew/dumpcgo_test.go
index 18a3835..ed3e3c3 100644
--- a/spew/dumpcgo_test.go
+++ b/spew/dumpcgo_test.go
@@ -59,10 +59,11 @@
 	v3Len := fmt.Sprintf("%d", v3l)
 	v3Cap := fmt.Sprintf("%d", v3c)
 	v3t := "[6]testdata._Ctype_unsignedchar"
+	v3t2 := "[6]testdata._Ctype_uchar"
 	v3s := "(len=" + v3Len + " cap=" + v3Cap + ") " +
 		"{\n 00000000  74 65 73 74 33 00                               " +
 		"  |test3.|\n}"
-	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
+	addDumpTest(v3, "("+v3t+") "+v3s+"\n", "("+v3t2+") "+v3s+"\n")
 
 	// C signed char array.
 	v4, v4l, v4c := testdata.GetCgoSignedCharArray()