0.04a update

The 0.04a update contains a number of new changes, ranging from color tweaks to a UI redesign. Here's the full list of changes:

• Changed floor color
• Changed green goal color
• Changed player jump height
• Partially fixed bug where player can walk through goals
• Redesigned UI
• You can now see your gun
• Added FPS display
• Improved lighting

Please note that there is a bug when you shoot the first bullet of the game. I do beleive I know where this bug is, however, and will hopefully fix it in the next update.