Created last world 4 levels.

Fixed bugs with adjust_position mechanic on concave polygons

Polished death ray
Additional mods to boss 3 and boss 4
Boss four reworked and completed

World four is up and running
Further tweaks to Boss Four
Removed some global namespace pollution.

Removed some dead code
Extensive code restructing

Code now satisfies properties and can be minified with Google's Closure
Compiler, advanced compilation
Added rating system and reward game state
Added basic rewards with rewards game state
Added Ultimate

Added Ultimate tutorial in reward game state

Added Ultimate to How to Play Tutorial

Added Ultimate to controls menu
Changed interface for drawing lives, ult, sparks.

Beginning work on aesthetics
Polished enemy aesthetics
Numerous changes. Late commit.

Made aesthetic changes to boss two.

Re-worked title screen and world map screen.
Continuing to do UI for world map state
Menu revamp completed. Bugs probably remain.
Added background animations and background textures.
Changed to 30 FPS.
Removed the buffer_polygon slow factor.

SetAngle is now only called occasionally, but the "real" angle is drawn.
Tons of UI tweaks and enemy tweaks. More UI bugs to fix.
More UI tweaks and gameplay tweaks.
Some more UI tweaks.

Fixed a bizarre bug that involved text flickering.
Did this by changing the font-size.