Added the option s to the Park application which will silence the announcement...

Added the option s to the Park application which will silence the announcement of the parking space number. Also, fixes the bug of just clearing the flags instead of actually parsing the arguments to Park.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@140491 65c4cc65-6c06-0410-ace0-fbb531ad65f3