added a simple udp send/receive jitter test tool
use c std version of usecTimestampNow()
handle first packet stats better
windows build
windows build
windows build
windows build
use our ported version of usecTimestampNow cause windows sucks
change stats to display difference between gap and expected gap
more windows headaches memset instead of bzero
Merge pull request #3242 from ZappoMan/jittertesttool

added a simple udp send/receive jitter test tool