7.x 1.x alpha

I think these commits help with a few issues in the queue. The patch to drupalgap_get_path might help with others.

https://github.com/signalpoint/DrupalGap/issues/62
https://github.com/signalpoint/DrupalGap/issues/64
https://github.com/signalpoint/DrupalGap/issues/67
https://github.com/signalpoint/DrupalGap/pull/73 (oops, dupe pull)