release 2.0alpha0, the 2.0a0, 2.0.185

Merge branch '1.0release'

Merge branch '1.0release'

release 1.0r2

SRS 1.0r1 released

SRS 1.0r0 released

update readme for 1.0beta

fix #79, fix the reload remove edge assert bug. 0.9.189.

1.0.mainline6, core/kernel/rtmp utest, refine bandwidth(as/js/srslibr…

…tmp library). 50029 lines.

prepare release 1.0 mainline5