Bug 1003711 - [RTSP] Build Darwin Streaming Server on B2G emulator

Change-Id: Iab903f897fe514c2cec1d9b9eab79fb52617d3b8
Merge pull request #200 from ethantseng/bug-1003711-fix

Bug 1003711 - Part 1: Add darwinstreamingserver to b2g-manifest. r=vicamo
use local aosp/mozillaorg mirror

Change-Id: I9d43700cff3b1678830adf8c2906748424f17138
use git.mozilla.org

Change-Id: Ie6dee5ddc36ba2da44d9f1a7f6dd76f2b0c09b6b