Fixed repost of Jörg's edits
Fixed repost of Jörg's edits

- Added modes: SILENT, HIDDEN, VISIBLE. Disable screen Redraw or
process Doc in background for more performance
- Changed Undo Modes to UndoModes.FAST_ENTIRE_SCRIPT
- Added Comments & Cleanup Performance tuning temp Items

fabiantheblind/basil.js,fabiantheblind/basil.js