Biblioteca LibGDX adicionada

Tela sem conteúdo criada
Adicionado alguns casos de testesobre o Throw System
Making tests for core
fixing issue #68
Correçao em varios bugs do collision e moviment system
Incuding an:
- Entity Builder to easy the creaion on new Entities.
- A class for make query about components in a Entity.
- A System Runner for easy the exeuction of systems in a test case.
Including the MovementSystem2 and some math to make Vector operations.
Merge branch 'master' of https://github.com/MaxFernandes/bomberman into unstable
removing jars do libgdx
Merge branch 'master' of http://github.com/kfourit/bomberman-1 into
unstable

Conflicts:
	src/main/java/br/unb/unbomber/systems/ExplosionSystem.java
Merge branch 'master' of http://github.com/rodriggochaves/bomberman into unstable
Melhorando tratamento de colisoes.
Fixing Warns.
update relatório

Sprints 3 e 4