added validator for email
added json dependency
refactored user resources test
Merge branch 'master' of
https://lunayo@github.com/samatase/saleBadgerJava.git

Conflicts:
	SaleBadger/src/main/java/app/saleBadger/UserResource.java
	SaleBadger/src/main/java/app/saleBadger/WebException/NotFoundException.java