Added Android support libraries.
Added SettingsActivity.java class.
Eclipse generated file.
Removed Holo Theme. Using now only AppCompat (Material Design).
Navigation components (Adapter, Callback Interface and Fragment).
Item class and item XML view.
Preferences Activity files.
Added some colors.
Updated values.
Variabilized sizes.
Updated MainActivity class.
Toolbar XML View file.
Main layout XML View file.
Navigation drawer fragment.
Removed Menu Inflater and corrected Toast behavior.