Version 4.1.8
Added vendor Sonus.
Sync with trunk to r674.
Updated osplibversion.h and RELNOTES.txt to prepare 4.2.3.
Merged branch 4.2 changes r667:673 into trunk.
Version 4.2.2
Updated RELNOTES.txt for release 4.2.2.
Updated osplibversion.h and RELNOTES.txt to prepare 4.1.8.
Version 4.1.7
Updated RELNOTES.txt for release 4.1.7.