small change
fix error of add command
change javadoc
add suntower
Merge branch 'zz_local'

Conflicts:
	src/com/soen6441/ui/common/GridView.java
	src/com/soen6441/ui/map/MapItemCell.java
Sun & Moon Tower Images

Sun & Moon Tower Images
Ice Tower Image

Ice Tower Image
add MoonTower implement MoonTower and SunTower
new ImageAssets

new ImageAssets
Refactoring MapPoint

Refactoring MapPoint
change data of SunTower and MoonTower
Merge remote-tracking branch 'origin/zcl_local'
bug with money now fixed
money working now *
add a method to GridView for testing and test class
Merge branch 'master' into zz_local