add PI handling in Call Proceeding.
add PI handling in alerting.
fix slow start handling
move faststart to callproceeding due to some broken hardware not anderstand 
    correclty faststart in progress.
fix rtp timer initialisation.
implement alerting-indication option and channel variable.
implement progress-indication option and channel variable.
fix short DTMF warnings.
remove SWITCH_RTP_FLAG_AUTOADJ because its not work correctly and not do anything reliable in our cases.
fix faststart in progress handling
fixxxxes
remove trys to implement non standard codecs.
implement jitter-size value option.
implement gk register retry timer.
implement h245insetup enable/disable option.
implement h245tunneling enable/disable option.
implement faststart enable/disable option.
fix release handling from h323 leg.
fix misstype in codec conversion.
fix rtp issue causes choppy sound.
fix progress ind handling on outbound calls.
fix crash on log line, btw not understand why.
implement dtmf transfer.
fix codec name conversion a bit.
fix crash on inbound fast start connection.

initial release.
