Adding back the  _flushZombieGroupViews funciton, this time with a null content check to prevent removing non-grouped items.
Adding back the  _flushZombieGroupViews funciton, this time with a null content check to prevent removing non-grouped items.

git-svn-id: 9512a22ec92b52636bbab2193a3e38f5e8e93632@23354 280ce282-5f28-0410-b095-e054cb237d46

Eloqua/sproutcore,Eloqua/sproutcore,Eloqua/sproutcore