- Plugins starting with underscore will not be displayed by the
preference/plugins window.
- This allow to add URLhandlers plugins on-the-fly.
- Add the RunCmdOnMatch plugin, which creates URLhandlers plugins
based on a regexp/command pair.
- If an URLhandler plugin returns a prepared URL starting with "terminator://",
then terminator will not try to open it with the URL handler (like xdg-open).
nojhan