Merge pull request #4 from timatooth/master

The initial code
Added build instructions and link to wiki
Update README.md
- 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
- "O" key now toggles planet HUD text
- Added initial code for loading planet types
- Adding planets is now done by choose a type, rather than choosing the characteristics of the planet manually each time
- Added ambient colour to planets
- Fixed bug where mass was not being set for planets
- Added comments
- Made ObjectLoader work staticly
- Changed PlanetWorker class to SolarSystem
- Added method for loading solar systems (from file eventually)
- Added Celestial class for celestial bodies
- Separated planet and sun into 2 separate classes
- Added some new packages
Added GUI menu. Background sky. Sun flare effect
- Added in Tim's GUI and effects
- Added in Tim's GUI and effects
Added mac, linux, windows executable scripts and icons.
Improved readme

Added download links, screenshot and short description of the game.