Changes
Authenticate with any DB (not just admin) on login: "mongodb://username:password@host/db"
Connection timeout option, see doc for Mongo::__construct
Throws exception for non-UTF8 strings
Added Mongo::listDBs function
Added MongoCursor::addOption for $min and $max queries
Tailable cursors fixed
MongoDate segfault fix
NEW - a bunch of mutex/threading stuff... if this doesn't work with your OS's
threading library, please file a bug!