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Fixes #4240 

See merge request !2243

[ci skip]

Add DEBUG_BANZAI_CACHE env var to debug Banzai cache issue.

See https://gitlab.com/gitlab-org/gitlab-ce/issues/4130#note_3012511

See merge request !2283

Prevent duplicate "username has already been taken" validation message

Closes #201 - two-year-old bug, woo! 💥 🎉

See merge request !2279

Revert "Merge branch 'rs-remove-jquery-blockui' into 'master'"

This reverts commit bc12750f, reversing
changes made to 8a04b84e.

See merge request !2285

Added system hooks messages for renaming and transferring a project

This is work in progress but I wanted to get some feedback on it in case there is something I've missed or a better way to do it.

As the title says when a project is renamed or transferred to another group a system hook message is generated.

Currently adds a couple of extra properties to the standard project system hooks messages.

old_path_with_namespace - The old path of the project so we can see what has been renamed / transferred
changed_at - The time that change took place

My main concern is if there is a better way of doing this than passing the extra_data variable into the system hook.  Would it be better to extend the project model with these 2 items as transient properties as I doubt they would need to be saved to the database?  The other 

I've also seen, but can't find, someone talking about the emails sent when a project is renamed or transferred doesn't reference the original project path so if you have similarly named projects then you might not know what has been moved.  I think the extra_data (or however it is best to implement this) would allow the extra information to be sent in emails.

Closes [System hooks for project transfer and repository rename](http://feedback.gitlab.com/forums/176466-general/suggestions/6006233-system-hooks-for-project-transfer-and-repository-r)


See merge request !611

Remove public field from namespace

https://gitlab.com/gitlab-org/gitlab-ce/issues/3580

See merge request !2222

This reverts commit bc12750f, reversing
changes made to 8a04b84e.

Catch Emoji name lookup error

This is a first part of the fix https://gitlab.com/gitlab-org/gitlab-ce/issues/5829

See merge request !2282

number_with_delimiter most of the things



See merge request !2258

Add js-requires-input and js-quick-submit to abuse report form



See merge request !2245

Remove jquery.blockUI.js plugin

It was required but no longer used.

See merge request !2273

Remove jquery.history.js plugin

We're not concerning ourselves with non-HTML5 browser compatibility, and
this removes 21 KB from our compiled JavaScript.

Bonus fix: There was an extra space after the query string in the URLs
that has now been removed.

See merge request !2272

Improving autocomplete performance part 2

Related issue: gitlab-org/gitlab-ce#3507

See merge request !2253

Bump bootstrap-sass to ~> 3.3.0

Resolves bootlint error:

`bootlint:  W013  Bootstrap version might be outdated. Latest version is at least 3.3.6 ; saw what appears to be usage of Bootstrap 3.3.5`

See merge request !2275

Bump cal-heatmap-rails to ~> 3.5.0



See merge request !2276

Expire view caches when application settings change

If the admin disables Gravatar, for example, before the views would not invalidate. Now they invalidate automatically when this happens.

Closes #5728

See merge request !2280

docs: raketasks: Add documentation on uploading to mounted shares

Fog has a local storage provider, which can be use to copy backups to locally mounted cifs / nfs / smb shares. This MR adds documentation to doc/raketasks/backup_restore.md in response to #3387.

@stanhu I found some time tonight and was able to get this started earlier than I initially expected, glad I could contribute.

See merge request !2246

Update copyright notice to 2016 [ci skip]

Don't attempt to set Referrer policy in Safari

While Safari supports the policy, it does not (currently, as of 9.x)
recognize `origin-when-cross-origin` as a valid value, so we omit the
policy entirely under Safari.

Closes #5609

See merge request !2269

Closes #5728

Closes #201 - two-year-old bug, woo! 💥 🎉

Some were no longer needed, others needed `!important`.

The old way broke d3, for some reason.

Fix typo in CI settings

Remove a little typo in the CI section of the settings.

See merge request !2270

It was required but never used.

We're not concerning ourselves with non-HTML5 browser compatibility, and
this removes 21 KB from our compiled JavaScript.

Bonus fix: There was an extra space after the query string in the URLs
that has now been removed.

Fix broken SVN migration link

Closes https://gitlab.com/gitlab-com/doc-gitlab-com/issues/45

See merge request !2271