HH-32688 do not fail to start in case syslog is down and print error message to server_log about the incident
HH-35383 add IOLoop.instance().add_callback support
HH-34878 add new supervisor options into example config
HH-30380 show original Content-Type and -Disposition on debug page, but replace it in actual output
HH-30380 PEP8
HH-30380 fix for debug=pass
updates for compatibility with tornado 3.1
Merge remote-tracking branch 'origin/HH-33539' into release-candidate
Merge remote-tracking branch 'origin/HH-30380' into release-candidate
Merge remote-tracking branch 'origin/HH-34878' into release-candidate
Merge remote-tracking branch 'origin/HH-32688' into release-candidate
release 2.17.13
[HH-35738] put original request into stub response
Merge remote-tracking branches 'origin/HH-35383' and 'origin/HH-35738' into release-candidate
release 2.17.14
HH-33539 ignore multipart/form-data requests while removing password values from bodies of POST requests