Changes Galore!

In addition to squashing some bugs…i mean fixing my errors, I have now
implemented:
 - POWERUPS!
    - Use the M powerup to change all of the nodes to the ring color
    - Use the CLOCK power to freeze time for 10 seconds.
    - They appear as persistent player attributes on the left.

Todo:
   - Last-ish thing to do is add a different mode (frenzy mode)