Fixed some wave file header problems for GSM encoding.
   fixed block size
   fixed ave. bytes per second
   fixed bits per sample


git-svn-id: http://scm.sipfoundry.org/rep/sipX/main@12239 a612230a-c5fa-0310-af8b-88eea846685b
Exposed ability to record to file using GSM encoding to media interface.
Can now record wave files using PCM16 or GSM encoding.


git-svn-id: http://scm.sipfoundry.org/rep/sipX/main@12240 a612230a-c5fa-0310-af8b-88eea846685b
Exposed ability to record audio to wave files using GSM encoding in sipXtapi and cp interfaces.
  Also fixed a few compiler warnings.


git-svn-id: http://scm.sipfoundry.org/rep/sipX/main@12241 a612230a-c5fa-0310-af8b-88eea846685b