Added parameter and check to condition scanning of Qmail queue for replies,since not everybody will have qmail installed and setup for that. Bumpedpackage version to allow upgrading.
Fixed problem discussed in this thread: http://openacs.org/forums/message-view?message_id=51478 about how site nodes get their context_id set. I took Barry's suggestion and use the parent site node object id by default, and then, if there's no object mounted here, fall back on the old package_id of the subsite through which you're currently mounting the new package.
