Update Chanelog

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3301 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

+ -- Added Open Settlement Protocol (OSP) support
+ -- Added Non-facility Associated Signalling (NFAS) Support
+ -- Added alarm Monitoring support
+ -- Added new MeetMe options
  -- Added GR-303 Support
  -- Added trunk groups
  -- ADPCM Standardization