Alpha 3

Glyph Alpha 3 Update. This branch is for Unity Source Code. Check the
GitHub or SourceForge page for the compiled game.

Additions:
+ Tutorial
+ Trapezoid of Doom
+ Lives
+ More Gameplay Progression
+ Splash Text
+ Controls Menu
+ Console
+ Basic update checker

Changes:
- New Insane Mode music and background
- New enemy sprite
- New pause sounds
- Modified recharge rates

Removals:
- 600MB of Unity Metadata

Bugs & Other Notes:
- This update erases all data from previous versions of Glyph including
scores and preferences
- There is a massive lag spike when enemies transform into bosses