Navigation Fragment Swapping System
Add in basic User Input
Search for Users Feature

Can search for a user and add them to a list. The selected use will be
the on who's feed you see
Material UI Changes

Made a bunch of UI changes to make the app look and feel more the like
GMail app with its material design.
Update & Delete Users Feature

Added in the ability to update and delete users via the actionbar.
Sync All Feature

Added 'Sync All' Feature to Users List.