- Moved respawn code to its own file
- Reorganized a lot of the code related to respawning
- As a result of the massive reorganization, I squashed several bugs. Most notably: mid-game joiners having weird spawns, being able to skip laps by respawning.
- Respawn lightsnake no longer takes you straight to your nextwaypoint -- it now has a minimum distance forward that it tries to put you at when you respawn.
