Updating versions of formatter and license maven plugins
Merge pull request #46 from imartinezortiz/fixing_formatter

Updating versions of formatter and license maven plugins
Added a main menu to the techdemo, and back-links to all scenes
Merge pull request #48 from manuel-freire/techdemo-menu

Added a main menu to the techdemo, and back-links to all scenes
Created notion of "subgames"
- Subgames live under subgames/ folder, and can have nested subgames
- Also, added EndGame action, to end subgames. When player is in the root game, the application exits.
Merge pull request #45 from anserran/subgames

Created notion of "subgames"