Quit button added to actionbar and working
Quit button done; commit before the beginning of work on the settings
Settings custom adapter is now working
Implemented view recycling and view holder pattern for the Settings list (in SettingsListAdapter.java)
Menu reverted to overflow, onItemClickListener created and attached to the settings list
Refactored the whole thing to work with Lollipop's AppComapt v21 and to use navigation drawer instead of tabs
Fragments are now linked to the menu entries; HomeFragment will initialize in the activity's onCreate
Refactored and cleaned up the 'initHomeFragment' method in the main activity
Refactored main_activity.xml structure, the new order eliminated the need to set top margins from the toolbar in every fragment