Added GSM library.
Work in progress on adding Radio Layer 3 message decoders.



git-svn-id: http://yate.null.ro/svn/yate/trunk@5692 acf43c95-373e-0410-b603-e72c3f656dc1
Renamed codec class.



git-svn-id: http://yate.null.ro/svn/yate/trunk@5693 acf43c95-373e-0410-b603-e72c3f656dc1
Work in progress to the GSM library.



git-svn-id: http://yate.null.ro/svn/yate/trunk@5694 acf43c95-373e-0410-b603-e72c3f656dc1
Merge branch 'upstream' of github.com:vir/yate into deb
Updated debian package version to 5.0.1~svn5694