[IN PROGRESS] Trying to make a request using a progressFragment (external lib).
modified config to make it work with new version of gradle plugin (0.7.+) and android studio 0.4.0. Need to update adt to 19 also. Still an error which seems easily handlable (related to progressFragment).
Switching to profile is now sending request to server. But there is a problem server side, always returning the same tokens... Also TODO: change the cache validity.
Working ! Implemented onSuccess method and onFailure (still some cleanup to do and test failure).
improved information display and cleaned up a few things.
Merge branch 'master' into user-profile

Conflicts:
	src/main/AndroidManifest.xml
	src/main/res/values/strings.xml
refactored common code into a tool class with static methods.
typo in constant value.
Merge pull request #3 from parquetn/user-profile

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