Merge branch 'develop' of https://github.com/MathieuCalba/mix-it-android into feature/fix-up-action-bar-button-management
fix up method visibility
home is at level 0
fix up action bar button management
adding management of up button in member details screen
adding management of up button in session details screen
Merge branch 'feature/fix-up-action-bar-button-management' into develop