IDEA-107271 Deadlock on showing open file sheet on macosx
move: suggest to leave in same source root only when elements to move were distributed between different source roots (IDEA-107843)
IDEA-107926 Modal dialog -> UI blocked after installing plugin from disk
fix testdata
IDEA-107844 highlight lhs in assignability issues
[vcs] IDEA-107452 Fix garbage in workspace.xml by ChangelistConflictTracker

* Don't mark the file as conflicted if it doesn't belong to any
  changelist (file not under VCS, LightVirtualFile, etc.)
* Remove the existing files from workspace.xml: on load check if the
  file, saved as conflicted, still exists in a changelist. If not,
  don't load.
[vcs] Remove unused fields from ChangelistConflictTracker.Conflict

timestamp & changelistId are only read and written, but never used.
relative paths
Added terminal plugin to community layout.
Merge remote-tracking branch 'origin/master'