RESOLVED - issue OPENFLEXO-366: Role specialiezation is not shown in
list  https://bugs.openflexo.com/browse/OPENFLEXO-366
LOW: Added possibility to hide options button
LOW: Dropped comments
LOW: Fixed potential NPE
Fixed storage of module views
LOW: Dropped don't generate in docked panel
LOW: Implemented visible row count
MEDIUM: Removed unnecessary actions and PPM import actions
MEDIUM: Added double click action on RoleList
LOW: We now always create a new begin node (when none has been provided)
MEDIUM: Prevented NPE (could be improved by using the default cell
editor for Number's)