Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

The descriptions were not accurate and one particular spec seemingly
expected the wrong User row to be returned.

[ci skip]

This simplifies the "Report button" to not use open a dropdown and
adds a tooltip on this button.
This also removes an extra spec and adds missing specs.

Only show recent push event if the branch still exists or a recent merge request has not been created

Closes #2277

Closes #2116
Closes https://github.com/gitlabhq/gitlabhq/issues/9502

This method encapsulates all the logic for disabling 2FA on a specific
User model.

- Removes looking up authors/committers by name
- Renames `User.find_for_commit` to `User.find_by_any_email`

Now it executes a single query instead of a possible three at the cost
of some scary-looking ARel calls.

Now we can simply loop through all themes, among other things.

This also removes the `dark_theme` / `light_theme` classes and the
`theme_type` helper, since they weren't used anywhere.

Closes https://github.com/gitlabhq/gitlabhq/issues/9328

To prevent loose of group data you need to transfer or remove group
first before you can remove user
Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Snippet model was missing project association

Now there is a single source of information for which attribute a model
uses to be referenced, and its special character.

This feature was requested long ago:

http://feedback.gitlab.com/forums/176466-general/suggestions/4118466-ability-to-register-only-from-ceratain-domains

This MR is based off !253 but changed to use application settings and use wildcard strings
to give more flexibility in pattern matching. Regexps seemed overkill and easy to get wrong.

Only restrict e-mail addresses upon creation

Fixes #1967.

Signed-off-by: NJeroen van Baarsen <jeroenvanbaarsen@gmail.com>