Major Changes + Navigation SideBar

- Added RNFrostedBar for amazing navigation
- Rounded up attendance (the correct way)
- Added Helpshift
- Replaced SJNotification with CSNotification View
- Created a tutorial for the start (in progress)
- Handled all network related errors
- Removed iPad support for now
- Fixed gitignore not being used

Broken:
- Attendance colors in the main table view. No idea why.

TODO:
- Select and add specific icons to the menu
- Fix that color problem!

BTW tested on the actual device! :)