Cambios para hacer commit:
	modificado: libs/android-support-v4.jar
	modificado: src/com/iesebre/dam2/pa201415/ivan/androidskeleton/LoginActivity.java
	modificado: src/com/iesebre/dam2/pa201415/ivan/androidskeleton/MainActivityDrawer.java

We edit shred preferences on logout twitter and we have the same fucking
behavior that i told to my lovely teacher....