Change to ConcurrentHashMap
Add BUILD_DELAY and FACTORY_SIZE
Move BattleState into class vars
Commit progress on buggy build system
Implement basic build system
Add abstract BaseManager class for entity management
Change default values
Switch to ConcurrentHashMap
Merge branch 'development' of
https://jygsaw@github.com/Jygsaw/Overload.git into development

Conflicts:
	Overload/src/com/spillovergames/overload/battle_activity/BattleView.java
	Overload/src/com/spillovergames/overload/battle_activity/systems/MovementSystem.java
	Overload/src/com/spillovergames/overload/utils/BaseManager.java