URBNG Updated Home Page and Default layout, new database structure (provided by Slick) and few new actions in controllers.

This commit contains:
- Upgraded Play Framework to version 2.1.1 to use Slick (play-slick - https://github.com/freekh/play-slick)
- Added registration form template (without any validation and real action)
- Login form now allows to send login data to redirect to MyGames view but no authentication and validation is set
- Headers in home and default layouts have been changed a bit
- Added configuration and bridges needed to provide Play-Slick 'separated tables schema' (see play-slick Wiki - https://github.com/freekh/play-slick/wiki/Keeping-tables-separated)
- New model classes with Games, Operators and Tasks initial tables (Slick) + simple methods to create or select data
- Added new actions in controllers to get/set data using Json format.

Please consider that there is no tests for this new classes and methods. It will be provided soon.
Merge remote-tracking branch 'wojtek.origin/web' into web

Conflicts:
	app/assets/stylesheets/main.less
	conf/messages
URBNG-60 Small change in Play installation instruction (link and version).
URBNG-70 Finished main part of validation. Connection with model kept in javascript (angular) and entering informations to inputs using different way than simple writing (ex. calendar) is now provided.
Merge remote-tracking branch 'angela/web' into web

Conflicts:
	app/assets/stylesheets/main.less
	conf/messages
	database/urbangame.h2.db
	database/urbangame.trace.db
	target/scala-2.10/resource_managed/main/public/javascripts/controllers/newGameCtrl.js
	target/scala-2.10/resource_managed/main/public/javascripts/controllers/newGameCtrl.min.js
	test/assets/specs/newGameCtrl.spec.js
URBNG-68 New games service has been added to perform quering for data from server, so now AngularJS model is filled by this data, and not by embedded one.
URBNG-70 Finished validation of "Create new game form". Only checking if game name is unique across all games in database is not yet implemented.
Merge remote-tracking branch 'angela/web' into web

Conflicts:
	database/urbangame.h2.db
	target/scala-2.10/resource_managed/main/public/javascripts/controllers/myGamesCtrl.js
	target/scala-2.10/resource_managed/main/public/javascripts/controllers/myGamesCtrl.min.js
	target/scala-2.10/resource_managed/main/public/javascripts/main.min.js