tagging 3.0.2

Prepare for iperf3 3.0.1.

update make_release for hg

Updated documentation

add make_release script

bump version number

rename uuid.[ch] to iperf_util.[ch] to avoid confusion on some platforms

rework iperf_run using switch statement; add missing break from arg p…

…rocessing

rework iperf_run using switch statement; add missing break from arg p…

…rocessing

move windows service cruft into service.c