Merge pull request #4 from gbasile/master

Refactor
Merge pull request #5 from gbasile/master

Fixed a problem with Game Cells
Merge pull request #6 from gbasile/master

Refactored Methods positions, now the methods fit as a tree structure.
Add Mantle framework to Podfile
Refactor PlayerEntity based on MTLModel

Conflicts:
	GossipLeague.xcodeproj/project.pbxproj
	GossipLeague/Classes/BLL/Entities/PlayerEntity.m
Refactor GameEntity based on MTLModel
Merge pull request #7 from joanromano/master

Model refactoring with Mantle