EA-61903 - NPE: PopFrameAction.a
stop on breakpoints in groovy traits
adding a flag to tweak folding behavior on editing
EA-61092 - NPE: BreakpointItem.showInEditor
[vcs] Update Project: wider local history action

Start the action before update, instead of before vfs refresh.
End the action after possible after-update operations (like conflicts
resolving in SVN).