Skeleton code for navigation drawer created
Navigation Drawer/ActionBar logic is now complete.

- The ActionBar and NavigationDrawer now synchronize and share state.
- NavigationDrawer "learning" is now supported.
App now styled to better fit Material Design themes.

- Primary and dark color themes and tints added.
- ActionBar replaced with Toolbar to allow occulsion during navigation drawer opens.
Added initial navigation drawer animations, avatar and cover.
Merge branch 'master' of github.com:xamgems/selfiechat

Conflicts:
	app/src/main/res/layout/activity_home.xml