Merge pull request #301 from gcarcassi/3.2.x

o.c.u.pvmanager.widgets: fix configurable menu item should not appear on: resolves: #292
o.c.u.pvmanager, org.epics.vtype: better handling of unsupported notification types.
Should not use anonymous inner classes, as they don't have a simpleName
Exception should be handled through normal excpetion support