Added libjingle_peerconnection_java_unittest to buildbot_tests.py

The test apparently needs a custom LD_PRELOAD, so I made the script capable of handling custom environments.

TBR=kjellander@webrtc.org
BUG=1796

Review URL: https://webrtc-codereview.appspot.com/1916004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4441 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed