ASGARD-1111 - Update Frigga to handle new appversion format for git hashes

The position of the CL and build number will be reversed for stash-based builds.

Also updated to the latest gradle template.

https://github.com/jgritman/frigga/commit/29e8213335ddcdaa26cad87c181f9be7d22c8246 is the important commit. Sorry didn't realize the gradle update would cause so much noise.

@joesondow @claymccoy @amadeoc