Set the atime/mtime of wudata_XX.dyn to current time upon seeing first "Completed" line.

This is to support more accurate session TPF/PPD calculation of modded qd utility.
mkrelease: remove .git before creating the archive
mkrelease: execute the shell with -e
CHANGES.txt: thekraken 0.7-pre17
thekraken 0.7-pre17