Cambios para hacer commit:
	modificado: res/layout/activity_main.xml
	modificado: res/values/strings.xml
	modificado: src/com/iesebre/dam2/pa201415/ivan/androidskeleton/MainActivityDrawer.java
	modificado: src/com/iesebre/dam2/pa201415/ivan/androidskeleton/NavigationDrawerFragment.java

addesd new checkbox to personal login and the drawer menu appears hidden the second time we load it. The first time is visible :(