removed finish() so that back button functions

Removed the finish() on activity, allowing the back button to function
without existing the application. Finish() kills the activity while without finish the activity is paused. 
Manually tested, recommended by Anna from DDM.
GoMoHTTPClient Accepts unsigned https 

Thanks to Anna Smith for contributing this code. I have ran the tests and manually tested it, everything is in working order.- Sabeur
[Sabeur] adding ant build tools because gradle sucks aka I am lazy to set it up
Merge branch 'master' of https://github.com/cjbloc/GoMo