reactivity: plugin support, convert mediawiki
install: define possibly non-standard PATH in etc/cron.d/ files, at build-time
plugins: unify packaging-specific crons and remove plugins/*/packaging
Replace hardcoded paths with various calls to get the values out of the configuration system
Get rid of the src -> . symlink on FHS systems
Unbreak and silence the MediaWiki nightly dump cronjob (Closes: #680165)
Add support for mediawiki in RPM, drop old mediawiki patches.