NEW: Added ModelConstants class to hold string constants used in object loading and operation, modified attack object to use properties instead of instance variables, fixed bug in attack object preventing attack objects from being entirely deep copies, modified effect to include applyEffect() abstract method
Merge branch 'fightingteam' of https://github.com/duke-compsci308-spring2013/vooga into fightingteam
Merge branch 'fightingteam' of https://github.com/duke-compsci308-spring2013/vooga into fightingteam