Many Path object forward its editing operation to the job object. It is
possible that some editing option change may lead to removing of the
editing object (e.g. changing stock type) causing crash. It is possible
to just open the task panel without setting any editing object by
returning False in ViewProvider.setEdit()
Reflects changes in
* PathOpGui.SetupOperation()
* GetResources()
* sPIxmap
* pixmap
* *.UI files
Also contains minor translation context renames (these were edits made near to original intent of this commit)