the NEW_CLI macro now supports extra arguments (to deprecate other commands).
use this to implement unload and reload, and remove some unused functions.
usual completion fixes (as these function accept multiple arguments).

The summary is still a bit inconsistent.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@47654 65c4cc65-6c06-0410-ace0-fbb531ad65f3