fixes #6866
upstream https://github.com/zendesk/eslintrb/pull/7

remove REDISTOGO_URL deprecation

Use eslint instead of jshint

Improve status message creation service spec

closes #6851

Fix like and reshare from the profile page

6853 fix usernames overflow

Which in turn updates libxml2 to 2.9.4 and libxslt to 1.1.29,  addressing
a range of security issues.
See https://groups.google.com/forum/#!topic/ruby-security-ann/RCHyF5K9Lbc
for more details.