Auto-equip spectators with compass and feather. Closes #156
Improve copy-inventory handling.
Support "doDaylightCycle" for lock-time function.
Keep match world spawns in memory
Track overall kills and deaths for players for post-match infoboards
Add workaround for start mechanisms when not SportBukkit

 - The hasSportBukkitApi() check is moved inside the loop, so that the loop is run even without it.
 - We add a new code block inside the loop when SportBukkit is not present. The code block first determines what block to do using the Attachable interface, or just uses DOWN if it's a pressure plate.
 - Once the block to update is determined, we set it to air with NO updates, then to its previous value WITH updates, which causes the desired redstone updates. This is because we don't have a way to ask for physics if nothing has changed.
Allow pressure plates to be used as start mechanisms
Cancel referees and streamers from activating pressure plates. Fixes #169