- The `scopes_form` partial can be used in the `admin/applications` view
  as well

- Don't allow partials to access instance variables directly. Instead, pass
  in the instance variables as local variables, and use `local_assigns.fetch`
  to assert that the variables are passed in as expected.

- Change a few instances of `render :partial` to `render`

- Remove an instance of `required: false` in a view, since this is the default

- Inline many instances of a local variable (`ip = 'ip'`) in `auth_spec`

- This module is used for git-over-http, as well as JWT.

- The only valid scope here is `api`, currently.

Reset expiry time of token, if token is retrieved again before it expires.

Revert "Revert all changes introduced by https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6043"

This reverts commit 6d43c95b.

Use special characters for `lfs+deploy-key` to prevent a someone from creating a user with this username, and method name refactoring.

Refactored LFS auth logic when using SSH to use its own API endpoint `/lfs_authenticate` and added tests.

- Required on the GitLab Rails side is mostly authentication and API related.

This reverts commit 13e37a3e.

Auth.find was a very generic name for a very specific method.
Auth.find_in_gitlab_or_ldap was inaccurate in GitLab EE where it also
looks in Kerberos.

Both work, but now we're consistent across the entire app.

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