move return_page and reply_to_user to general package definition to make it resuable in other packages,provide to Package methods "invoke" and "error_msg" optional non positional arguments to control thebehavior in error cases better, especially when xowiki pages are included
Remove broken callback code which causes reply by email to notwork. message::new is called in a scheduled_proc, you can't usead_conn. Taking out new feature specific to project manager thatbreaks existing feature.