fix #782 (bring vendor into the main tree)

vendor/github.com/tidwall/gjson/gjson_gae.go

@@ -0,0 +1,18 @@
+//+build appengine js
+
+package gjson
+
+func getBytes(json []byte, path string) Result {
+	return Get(string(json), path)
+}
+func fillIndex(json string, c *parseContext) {
+	// noop. Use zero for the Index value.
+}
+
+func stringBytes(s string) []byte {
+	return []byte(s)
+}
+
+func bytesString(b []byte) string {
+	return string(b)
+}