Fix Merc crash bugs.
Initial check-in of bard bot in combat song code.
Merge branch 'master' of https://github.com/EQEmu/Server

Initial check-in of bard bot in combat song code.
Bots- added out of combat bard songs & #bot bardoutofcombat on|off command to turn them on/off.
Merge branch 'master' of https://github.com/EQEmu/Server
Changed dates due to time of commit.