THRIFT-4236 Support context in go generated code
Client: Go
Patch: taozle <zhangliyang26@gmail.com>

This closes #1309
diff --git a/configure.ac b/configure.ac
index fcb9c6d..0c628da 100755
--- a/configure.ac
+++ b/configure.ac
@@ -397,7 +397,7 @@
   AC_PATH_PROG([GO], [go])
   if [[ -x "$GO" ]] ; then
     AS_IF([test -n "$GO"],[
-      ax_go_version="1.7"
+      ax_go_version="1.4"
 
       AC_MSG_CHECKING([for Go version])
       golang_version=`$GO version 2>&1 | $SED -e 's/\(go \)\(version \)\(go\)\(@<:@0-9@:>@.@<:@0-9@:>@.@<:@0-9@:>@\)\(@<:@\*@:>@*\).*/\4/'`