EDIT

Make CharacterEditor experimental

Merge branch 'develop' into featureTreeEditor

ref #6596 Keep track of active "editor"

• Add IE4SavablePart to E4 parts that can be saved
• SaveHandler will recurse through selection providing parts to find savable parts that can be saved

ref #6748 Unwrap E4 parts during selection change events

ref #6566 add Mnemonics to main menu

ref #6596 Add new utility class WorkbenchUtility in workbench plugin

• move getE4WrappedPart() method to that class

ref #6596 Implement framework for accessing the selection providing part

• All AbstractCdmViewparts now keep track of the part that has provided the last selection. This is necessary during e4 migration to simulate the e3 behavior having IViewParts that edit object of IEditorParts...

ref #5329: refactor convertPerson2Team handler

ref #6596 Replace CTRL+S keybinding with our own binding

• this is done via model processors
• this allows to use our SaveHandler to handle all save events

Fix potential class cast exception during selection handling