Removed Velocity; Implemented Move command
Continued implementing entity movement
Started implementing BasicWorldCreator
Implemented BasicWorldCreator
Nodes & Edges can now be drawn (partially implemented)

Not yet complete.
Nav graph can now be drawn

Useful for debugging
Fixes for nav graph debugging
Added clipping via ScissorStack
Fixed missing top & right edges of nav graph; Eliminated most warnings

Improved readability of setClipBounds a bit
Continued implementing MoveCommand
Continued implementing MoveCommand

- Fixed incorrect rotation due to the way that paths are returned
- Entity.move no longer requires an x,y value
- Added setSpeedMax method to Entity
Minor update to MoveCommand.update()

- If isFinished() == true, the method now returns
Multiple updates to entity commands and entity

- Added Entity.contains(x,y)
- Commands are now executed properly
- Many more methods in Entity are now marked as final
Entity paths can now be drawn
Continued debugging Entity movement
Overrode toString in Entity, Edge, Node

- Added protected getRotation method to Entity, which is overrideable
Continued fixing problems w/ Entity path following
Fixed Entity movement
The log level is now set when App.setDebug is called
Added GameMath tests; Fixed errors uncovered in A* tests