ensure syslogd is up before starting the build

test/schema.py uses log/syslog which requires a running syslog daemon
and the start script should guarantee it is up and running.
Add vtctld explorer plugin for etcd.
Merge pull request #253 from yaoshengzhe/fix_flaky_ci_test

ensure syslogd is up before starting the build
let travis build status ref master branch only
Merge pull request #258 from yaoshengzhe/fix_travis_badge_for_master

let travis build status ref master branch only
Fix case for disable_query_service flag
Merge pull request #257 from youtube/etcd-explorer

Add vtctld explorer plugin for etcd.
Fixing a number of golint issues.
Merge branch 'master' into replication
Linter fixes.
Merge pull request #259 from youtube/aaijazi_correct_casing_of_flag

Fix case for disable_query_service flag
Opt test/update_stream.py out of travis ci

test/update_stream.py is flaky and needs further investigation before
putting into travis ci.
Merge pull request #261 from yaoshengzhe/fix_update_stream_test

Opt test/update_stream.py out of travis ci
Better linter fixes.
Merge branch 'master' into replication
Merge pull request #260 from youtube/replication

Replication
Merge branch 'master' into vtgate