* upstream/master: (307 commits)
Address feedback
Add small update for the i18n guide.
update webpack to v2.6.1 patch release to fix "Can't find variable: Promise" error
update webpack-bundle-analyzer past v2.4.1 to support NamedChunksPlugin
name all webpack chunks to improve long term cacheability
add NameAllModulesPlugin to cover shortcomings of NamedModulesPlugin
upgrade to latest webpack version
Only use DROP INDEX CONCURRENTLY on postgreql 9.2+
Provide default for calculating label text color (!11681)
Add failing test for #32728
Bugfix: Always use the default language when generating emails.
Remove unecessary commit pattern check
Add regexp_for_value helper method
Remove shared example and improve sub_group_issuables_spec.rb
Remove 'should' from scenario in has_subgroup_title_spec.rb
Cartfile git and binary methods cannot take a GitHub repo
Fix terminals support for Kubernetes service
Add review comments to compare_spec.rb
Fix transient error clicking dropdown items in compare_spec.rb
Use non-global jQuery reference within raven bundle
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