happy bmo push day!

[Dylan Hardison]

the following changes have been pushed to bugzilla.mozilla.org:

(tag: https://github.com/mozilla-bteam/bmo/tree/release-20180426.4)

https://bugzil.la/1450325 : Update email templates with instructions for unsubscribing from all emails
https://bugzil.la/1451599 : Checkbox for agreement terms at create account page should be on the left side
https://bugzil.la/1438205 : Preserve comments in progress across page reloads
https://bugzil.la/1452531 : PhabBugz code should add allow visibility to reviewers when creating custom policies
https://bugzil.la/1440828 : Phabricator review requests should show up on the BMO dashboard
https://bugzil.la/1452241 : Improve feed error handling and logging
https://bugzil.la/1453124 : extensions/PhabBugz/bin/update_project_members.pl should be combined with the normal feed daemon
https://bugzil.la/1455493 : cleanup push connector logging
https://bugzil.la/1427395 : Allow request_cache to be constant-folded in Bugzilla.pm
https://bugzil.la/1455772 : Label bug bounty form credit fields
https://bugzil.la/1373280 : Highlight private comments in new bug modal UI
https://bugzil.la/1430367 : Ssl preconnect google analytics
https://bugzil.la/1456529 : Support SameSite attribute on session cookies
https://bugzil.la/1441732 : Improve missing module error in Bugzilla::Extensions and catch more compile errors in tests
https://bugzil.la/1457031 : When a revision does not have an bug id, the bug is made public but we also need to remove secure-revision tag