Add qiang.lu@intel.com to WATCHLISTS.

(patch from http://review.webrtc.org/2859004/)

TBR=qiang.lu@intel.com

Review URL: https://webrtc-codereview.appspot.com/2989004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5037 4adac7df-926f-26a2-2b94-8c16560cd09d

WATCHLISTS

diff --git a/WATCHLISTS b/WATCHLISTS
index c99ded4..d480c2e 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -96,7 +96,8 @@
                    'leozwang@webrtc.org'],
     'root_files': ['andrew@webrtc.org',
                    'niklas.enbom@webrtc.org',
-                   'yujie.mao@webrtc.org'],
+                   'yujie.mao@webrtc.org',
+                   'qiang.lu@intel.com'],
     'documented_interfaces': ['interface-changes@webrtc.org',
                               'rwolff@gocast.it'],
     'common_audio': ['bjornv@webrtc.org',