Don't allow username to end in period.

The current behavior doesn't do username referencing and mentioning in sentences like "I discussed with with @douwe." since `douwe.` is matched as a username.

Addresses private issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2174.

See merge request !438

Ability to skip some items in backup

https://dev.gitlab.org/gitlab/gitlabhq/issues/1936

Now it is possible to run

```
sudo gitlab-rake gitlab:backup:create SKIP=repositories,uploads
```

available options: repositories,uploads,db

See merge request !470

Check symlink mode as a String for file_type_icon_class

The file mode for a symlink just got changed in `gitlab_git`, see https://gitlab.com/gitlab-org/gitlab_git/commit/8ae14bb84b94a2ec15f8a639fb82f0f55c77ad69

See merge request !487

See https://gitlab.com/gitlab-org/gitlab_git/commit/8ae14bb84b94a2ec15f8a639fb82f0f55c77ad69

Conflicts:
	lib/gitlab/markdown.rb

Unbind task item checkbox events and then rebind them

Fixes #1340

This issue was caused by this line: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/app/views/projects/issues/update.js.haml#L17

`new Issue()` gets called on every JS-based issue update, and all the binds in the constructor get re-applied without first unbinding the existing ones. Right now my fix is *only* for the checkbox events, and I suspect there are similar issues still present for other events.

See merge request !478

Don't use chmod_R for backup tars

When creating backup tar files, only change permissions on the `db`, `uploads`, and `repositories` directories, not their contents.  See https://dev.gitlab.org/gitlab/gitlabhq/merge_requests/1716#note_40472

See merge request !1744

Don't leak private group existence by redirecting from namespace controller to group controller.

See merge request !440

Fix admin user projects lists.

The admin user personal projects lists wasn't being rendered anymore.

cc @marin

See merge request !442

Better looking milestone lists

### Before

![milestone-before](https://gitlab.com/gitlab-org/gitlab-ce/uploads/1366ade74d76b067fdc8707d31d2bffc/milestone-before.png)

### After

![milestone-after](https://gitlab.com/gitlab-org/gitlab-ce/uploads/80ae1c1f77eae5dff8ee61c4271bec17/milestone-after.png)

See merge request !484

Fixes #1340

Allow ability to delete branches with '/` in name

Fixed issue where only 25 commits would load in file listings

Fixes #1310

See https://gitlab.com/gitlab-org/gitlab-ce/tree/master and it will only show the first 25 files commit messages.

See merge request !477

Update documentation on issue closing pattern.

See merge request !475

Added badge to commits tab

Fixes #1261

See merge request !465

Fix merge errors on CHANGELOG

API: Events paginate

Updated the api method for /project/:id/events, to use the paginate method instead of limiting and offsetting the recent events in the method itself.

This will also change the first page to be 1 instead of 0, but using 0 will still work and will give back the first page.
This also add's the link headers (next/first/last).

See merge request !267

Bump Docker build to GitLab v7.9.1

Upgrade GitLab from v7.9.0 to v7.9.1.

See merge request !476

During merges (d554070a and 497fd75d) changelog was "damaged", I restored the tagged 7.9.1 and added the required changes about 7.10.0 (unreleased). I think we need to ensure all PR are rebased on master before merge.