Channel suspension, transfer and line wrap changes

Channel suspension, transfer and line wrap changes

* Treat half-unsuspended channels as unsuspended, to avoid crashes
caused by sysadmins editing chanserv.db in screwy ways.

* Add a srvx.conf option to limit how often channel owners can give
away channel ownership.

* Limit most output line expansions to just one line.

* Remove unnecessary assert(hs_user) checks from mod-helpserv.c.

* Don't run_empty_interval() in HelpServ when the user's server is
still bursting.
git-archimport-id: srvx@srvx.net--2004-srvx/srvx--devo--1.3--patch-74