[split] Several small fixes towards getting birdcage-auto-ci green.

Reconcile dependency drift in jackson libs to fix compile errors.
Reconcile dependency drift in netty to fix a finagle-http test failure.
Upgrade pants to 0.0.34 to pickup a fix in the changed goal to ignore synthetic targets when calculating changed file owning targets.

Also add myself to OWNERS for top-level BUILD edit approvals.

RB_ID=162420

Author: jsirois

util-thrift/src/main/scala/BUILD

@@ -1,6 +1,6 @@
 scala_library(name='scala',
   dependencies=[
-    pants('3rdparty:jackson-mapper-asl'),
+    pants('3rdparty:jackson-databind'),
     pants('3rdparty:libthrift-0.5.0'),
     pants('3rdparty:slf4j-api'),
     pants('util/util-codec')