Merge pull request #4 from timatooth/master

The initial code
Added build instructions and link to wiki
Update README.md
- Added physics
- Added physics
- Added PlanetWorker.java
- Added Physics
- Added Physics
- Removed some debug code
- Added HUD for planets
- Added a "player" that can move and jump
- Added comments
Merge branch 'master' of https://github.com/OtagoOpenSource/GamesRepo.git into PlayerTest2
- "P" now toggles camera being fixed to player
Merge pull request #1 from OtagoOpenSource/master

Merge in latest planet code