** Added chat command for changing chat bot nickname
** Added IllusionGroupUser entity
** Changed Illusion group creation to add creator as game master into
the group
** Added methods for finding IllusionGroupUser by group and user
** Added new role ILLUSION_USER
** Added new permission ILLUSION_GROUP_ACCESS
** Added group user role passing to Illusion group page
** Added initial draft of Illusion group admin
** Changed Illusion group nickname generation would not generate illegal
nicks
** Added ui for changing chatbot name in Illusion group
** Updated strophe.muc.js into latest version
** Fixed nickname escaping in Illusion group