Refactor signup and signin methods in authController to handle JWT generation code better
Merge branch 'master' of https://github.com/germTheory/germTheoryWebApp into bug/#327
Re-throw an error when signup fails and let fail clause to handle this.  Also, removed .error clause in signup/signin services so that user controller can handle error conditions directly
Merge pull request #328 from ryojiosawa/bug/#327

Refactor error handling code to fix an error caused by signup failure