Register, spaceship animation, etc

Closes #2, #5, #18.

Register
- Register functionality complete (still needs password hashing #1)
- Register and Login controllers use a single View (FormPromptView).

Spaceships
- Nixed CSS/JS animation due to terrifying CPU intensity.
- Hover effect is achieved with a simple jQuery animation loop.
- Decreased size of shapeship image to 60x50 (reduced overall size to
100x100 and then trimmed "whitespace").

- Created debug class for future needs. Currently, displays the mouse
position relative to the window and within the world below.