Added ability to set the worker id and if not given a unique id will be set for the worker
Added ability to set the worker id and if not given a unique id will be set for the worker

Signed-off-by: Joe Stump <16a9a54ddf4259952e3c118c763138e83693d7fd@joestump.net>
danbruce/net_gearman,therounds/net_gearman,Publero/net_gearman,mhlavac/gearman