Update Changelog and README

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1671 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

+ -- Make PRI Hangup Cause available to the dialplan
+ -- Verify included contexts in extensions.conf
+ -- Add DESTDIR support for building RPMs and packages
+ -- Do route lookups on OpenBSD
+ -- Add support for building on FreeBSD
+ -- Add support for PostgreSQL in Voicemail
+ -- Translate SIP hangup cause to PRI hangup cause where needed
+ -- Better support for MOH in IAX2
+ -- Fix SIP problem where channels were not removed on BYE
+ -- Display codecs by name
  -- Remove MySQL and put PGSql instead for licensing reasons
+ -- Better capability matching in SIP
+ -- Full IBR4 compliance for chan_zap
+ -- More flexible CDR handling
+ -- Distinguish between BUSY and FAILURE on outbound calls
+ -- Add initial support for SCCP via chan_skinny
 Asterisk 0.5.0
  -- Retain IAX2 and SIP registrations past shutdown/crash and restart
  -- True data mode bridging when possible

README.variables

@@ -43,6 +43,7 @@ ${DATETIME}	Current date time in the format: YYYY-MM-DD_HH:MM:SS
 ${UNIQUEID}	Current call unique identifier
 ${DNID}         Dialed Number Identifier
 ${RDNIS}        Redirected Dial Number ID Service
+${HANGUPCAUSE}	Hangup cause on last PRI hangup
 
 There are two reference modes - reference by value and reference by name. 
 To refer to a variable with its name (as an argument to a function that 

doc/README.variables

@@ -43,6 +43,7 @@ ${DATETIME}	Current date time in the format: YYYY-MM-DD_HH:MM:SS
 ${UNIQUEID}	Current call unique identifier
 ${DNID}         Dialed Number Identifier
 ${RDNIS}        Redirected Dial Number ID Service
+${HANGUPCAUSE}	Hangup cause on last PRI hangup
 
 There are two reference modes - reference by value and reference by name. 
 To refer to a variable with its name (as an argument to a function that