Add basic physics code.
Add Tiled map physics manager.
Fix build.
Refactor code.
Merge branch 'develop' into feature/box2d-physics.
Refactor screen management.
Load player position and size from the level file.
Refactor component management.
Add workaround to fix segmentation fault on exit.
Refactor code.
Merge branch 'develop' into feature/box2d-physics.
Modify code to reflect latest changes to the LibGDX API.
Restructure core architecture and input management.

Move WorldController logic to World class and move WorldInputProcessor
logic to a new HumanController class.
Fix GWT build.

GWT does not have support for Class.getSimpleName(), use a hard-coded
string instead.

See http://code.google.com/p/google-web-toolkit/issues/detail?id=3404
for more information.

GWT does not have support for String.format() either (wtf?).
Fix MapPhysicsManager size issues.
Add player physics.

It's a bit hack-y, but it sort-of works.
Merge branch 'develop' into feature/box2d-physics
Relicense remaining GPL-licensed files under the Apache License, Version 2.0.
Merge branch 'develop' into feature/box2d-physics
Use a Box2D sphere to represent the player.