FIxes issue 2204.
Thanks to Paul for the fix ! Also fixes the problem for full dual pane.

Upgrade pjsip to latest version.

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2157 9f815046-5998-e9c0-b7e2-ac03a23edfa4
Fixes issue 2199.
Introduce decline / ignore difference.
Decline rejects the call.
Ignore reply with busy which allows routing to vm/other devices.

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2158 9f815046-5998-e9c0-b7e2-ac03a23edfa4
Update translations

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2159 9f815046-5998-e9c0-b7e2-ac03a23edfa4
Fixes issue 2136.
Allow DTMF only when media is up.

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2160 9f815046-5998-e9c0-b7e2-ac03a23edfa4