Well, thats weird, I'll investigate At least it should not be caused by the packaging scripts as all the database files are created on runtime and are thus not listed in the package manifest. also the scripts don't do anything in MyDocs, at all.
Concerning regexp support, after studing the documentation in more detail, it turns out that modRana already supports regexps
I suppose you have 0.20-3 or later ? There was a fix in 0.20-3 for an issue just like you describe (modRana not shutting down properly - caused by stuck non-demonic threads). If you had this happen in the current version, I might not have fixed this completely...