Lots of changes!

- Tilt phone to move character
- Touch left to jump
- Touch right to attack
- Attack enemy while they're wounded to kill them

*** Connect a droid
- install droid phone's usb drivers
- apply "debug mode" in phone's developer options
- plug in, run "Game-android"
Merge remote-tracking branch 'origin/master'
Lots of changes!

- Tilt phone to move left/right
- Tiled maps and collision physics implemented
- Kill enemy with melee while wounded

Connect to a droid phone to test!