Don't try to look offhook with channel banks & Loopstart (bug #2362), also...

Don't try to look offhook with channel banks & Loopstart (bug #2362), also make individual modules reloadable...


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3714 65c4cc65-6c06-0410-ace0-fbb531ad65f3