Updates README and TODO
Restructures, adds services, JSHint and Quadtree.

- server/services/game/* for game related services
- adds JSHint along lots of semicolons [:
- Grunt for watched JSHint
- using of Quadtree2.js on server side
- updates TODO
Refines deprecation logic.
Fixes funny bug in Movable abstract.
Updates TODO.md.
Merge branch 'feature/area-service' into develop
Bumps version, updates changelog and todo.
Merge branch 'release/0.7.0' into develop