Use named constants everywhere for msgwin/compiler internal columns
Update Scintilla to 3.5.1 pre-release
Update for new Scintilla styles
Merge branch 'scintilla-update-351-pre'
Add comment about throwing away read-only for renamed documents
Notify user when trying to save read-only document
Merge pull request #335 from ntrel/save-cleanup

Notify user when trying to save read-only document
Enable per-project line wrapping
Fixups

Fix adding stash group and applying defaults.
Don't let Properties dialog override per-document line wrapping state.
Use "editor" for key group name.
Remove code already handled by stash group.