Bugfixes:
- #705: Find&Replace: Flawed traversal in CASE/PARALLEL branches;
- Precautions against empty error messages on startup;
- #759: Another source of stale Mainforms dried up;
- #761: Code preview defect flooded the log stream;
- #763: Stale file precautions on loading / saving arrangements;
- #764: Updating of the .arr file for a modified group may fail;
- #765: KSH export of diagrams using record types failed with error;
Removed features
- Deprecated ANSI-C73 import removed (subsumed by ANSI-C99 parser).