Add netgsm wizards

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2347 9f815046-5998-e9c0-b7e2-ac03a23edfa4
Fixes opus hack so that initial SDP is not modified by the hack and session timer / updates can work.

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2348 9f815046-5998-e9c0-b7e2-ac03a23edfa4
Upgrade opus to v1.1

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2349 9f815046-5998-e9c0-b7e2-ac03a23edfa4