Improves resource class names in rest
Improves resource class names in rest

Improves resource class names. Some mistakes were crept in while
resources were added into gnocchi.

Change-Id: I21de0de27a8893fccc8bcd607070f3487353f6b6
idegtiarov/gnocchi-rep,idegtiarov/gnocchi-rep,leandroreox/gnocchi,idegtiarov/gnocchi-rep,sileht/gnocchi,leandroreox/gnocchi,gnocchixyz/gnocchi,sileht/gnocchi,gnocchixyz/gnocchi