..utility.pvmanage.graphene: fixing name to match the convention

Change-Id: I0a51d57e2277f49947350c8081618c7a891da89f
Signed-off-by: Kunal Shroff <shroffk@bnl.gov>
..graphene.opiwidgets: refactoring to match the latest graphene release

Change-Id: I35a9e62752190009cff3e38a7b8a1d356a12e831
Signed-off-by: Kunal Shroff <shroffk@bnl.gov>