Updates for getting ready for friday

- Added dummy Home page
- Removed android topbar/status bar
- Added own topbar layout from game page
Fixed eraser not working in certain situations

- Upgrade android stduio/gradle
Started work on shake listener
Added Shake gesture !
Decoupled shake gesture from main activity
Code reorganizing

- Removed Constants.java
- Spread out constants across modules as static fields
Added shadows!

- Fixed erasing bug
Reorganized layout
Lots of changes!

- Made tap have to be of a certain quickness
- Fixed eraser bug
- Messed around with gradients (didn't go well :P)
Did some reorganizing of Level.java
Started work towards disc storage puzzles
Added devmode!

- also more work towards internal storage
Reorganized into folders / added basic xml db =)

Still work to be done on xml side
Added ability to print xml of current graph
Small code cleanup starting adding error checking to xml parser
Added more error checking to xml parser

Xml parser is mostly safe, could use more error checking in preamble +
make more generic
Finished up most of the error checking for xml parser

Probably go through some changes after World.java is complete to parse
World xml files
Added new classes and fixed animation bug
Integrated world support

Lots of code cleanup in now required!
Code cleanup phase 1

Also added blank levels/worlds to avoid crashing