simplify the save and delete interface for entity manager
simplify the save and delete interface for entity manager

hugin2005/bolt,Intendit/bolt,rarila/bolt,hannesl/bolt,marcin-piela/bolt,nikgo/bolt,GawainLynch/bolt,romulo1984/bolt,kendoctor/bolt,Intendit/bolt,electrolinux/bolt,codesman/bolt,bolt/bolt,HonzaMikula/masivnipostele,codesman/bolt,joshuan/bolt,xeddmc/bolt,richardhinkamp/bolt,lenvanessen/bolt,tekjava/bolt,hugin2005/bolt,nikgo/bolt,hannesl/bolt,electrolinux/bolt,Calinou/bolt,kendoctor/bolt,hannesl/bolt,Intendit/bolt,nikgo/bolt,GawainLynch/bolt,Raistlfiren/bolt,electrolinux/bolt,hugin2005/bolt,tekjava/bolt,electrolinux/bolt,cdowdy/bolt,bolt/bolt,CarsonF/bolt,rossriley/bolt,one988/cm,tekjava/bolt,winiceo/bolt,marcin-piela/bolt,winiceo/bolt,Raistlfiren/bolt,HonzaMikula/masivnipostele,romulo1984/bolt,bolt/bolt,pygillier/bolt,nantunes/bolt,Calinou/bolt,lenvanessen/bolt,rarila/bolt,nikgo/bolt,romulo1984/bolt,marcin-piela/bolt,winiceo/bolt,HonzaMikula/masivnipostele,kendoctor/bolt,joshuan/bolt,Calinou/bolt,Eiskis/bolt-base,cdowdy/bolt,hugin2005/bolt,Calinou/bolt,rarila/bolt,pygillier/bolt,codesman/bolt,rossriley/bolt,Eiskis/bolt-base,GawainLynch/bolt,codesman/bolt,richardhinkamp/bolt,winiceo/bolt,CarsonF/bolt,lenvanessen/bolt,tekjava/bolt,kendoctor/bolt,CarsonF/bolt,nantunes/bolt,richardhinkamp/bolt,pygillier/bolt,rossriley/bolt,Raistlfiren/bolt,xeddmc/bolt,rarila/bolt,Eiskis/bolt-base,richardhinkamp/bolt,joshuan/bolt,xeddmc/bolt,pygillier/bolt,CarsonF/bolt,lenvanessen/bolt,one988/cm,Raistlfiren/bolt,cdowdy/bolt,rossriley/bolt,Intendit/bolt,joshuan/bolt,nantunes/bolt,marcin-piela/bolt,one988/cm,xeddmc/bolt,hannesl/bolt,one988/cm,romulo1984/bolt,Eiskis/bolt-base,nantunes/bolt,GawainLynch/bolt,HonzaMikula/masivnipostele,bolt/bolt,cdowdy/bolt