Add Archive option to call files and add documentation on them. (issue #5426...

Add Archive option to call files and add documentation on them. (issue #5426 reported by ezio - props to blitzrage for proof reading the documentation)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@30299 65c4cc65-6c06-0410-ace0-fbb531ad65f3