Fixed Tower Decorations
Added Position class
Merge pull request #104 from sli-fox/jeremy

bug fixing decrmementCritters on death and on end tile
New CritterGameObject class that decouples Critter from GUI
Fully decoupled Critter class
Added class to decouple Tower from GUI
Merge pull request #105 from sli-fox/steph_branch

Steph branch
Implementing special effects with Decoration Pattern
Added FreezeEffect
Ctrl K Ctrl D
Added SlowEffect with Decoration Pattern
Merge pull request #106 from sli-fox/mark_branch

Mark branch
Removed all Observer Pattern occurrences
Merge branch 'master' of https://github.com/sli-fox/jamms into mark_branch
Merge pull request #107 from sli-fox/mark_branch

Mark branch
Added critter factory test
merging with effects
removing concrete tower
Merge branch 'master' of https://github.com/sli-fox/jamms into steph_branch
Fixed incorrect push with GameStatePlay's update function