[IETANKS-40]Added base for frontend development:
	* decided on Phaser in the end (gives some good abstractions over tiled map and there are tons of tutorials)
	* for now using bower for dependencies (see bower.json file)
	* each squad will create its own angular module which we can then add in app.js to modules seen (and to angularRoute so it sees the partial HTMLs)
	* for now using base Bootstrap css, we can always generate one with custom colours
adding maven-exec plugin automatically firing bower install
[IETANKS-40]Added base for frontend development:
	* decided on Phaser in the end (gives some good abstractions over tiled map and there are tons of tutorials)
	* for now using bower for dependencies (see bower.json file)
	* each squad will create its own angular module which we can then add in app.js to modules seen (and to angularRoute so it sees the partial HTMLs)
	* for now using base Bootstrap css, we can always generate one with custom colours
adding maven-exec plugin automatically firing bower install
Merge remote-tracking branch 'origin/frontend' into frontend
First, empty version of map. For now its just static, ground-level part
basic logic for moving and creating tanks added
   * some small sprites added
   * base for state created
   * scaling of grid
added coloring of tanks
Added REST communication logic stubs
Fixed menu nav, added game restoration logic
Refactored javascripts a bit, added missile visualisation, handling object lifecycle in game
Removed redundant angular module for finished games
final touches on frontend:
  * changed images
  * added player_id to missile (so it's shown we need it)
Merge pull request #12 from artekorzel/frontend

See Confluence for any info regarding getting front-end to work (downloading npm and bower).