Used STRCMP (instead of MEMCMP) for destination/calling number in two places.
Use of new macro for case free string comparison of Critical OSP msg elements
Added comments for the mutex unlock problem on windows
Removed unneccesary type castings, and added brackets for conditional statements
Added a new macro for case free string comparison
Defined #defs for strings related to protocol and version
Removed some comments, Removed unneccessary copy/free commands
Modified Release Noted for 2.9.0. Remover 2.8.3 and Merged with 2.9.0
Release Notes for 2.9.0
Changed min to tr_min