Provide more feedback what went wrong if HipChat service failed test
This MR adds support for displaying the error message during HipChat service test. Before an Error 500 would be displayed with no helpful remarks.
Screenshot:

Issue gitlab-com/support-forum#213
See merge request !1144
Improve merge requests
- [x] Fetch merge request refs by IID
- [x] Ability to fetch any merge request
- [x] Link commits and diffs in merge request to target project
- [x] Improve merge request UI and command line instructions
- [x] Check merge request widget loading test coverage double
See merge request !1115
Show who last edited a comment if it wasn't the original author
Fixes#1796.
The `updated_by` user is also tracked for issues and merge requests, but it isn't currently shown, because "edited by Person" would give the idea that Person edited the description, while most updates to those are assignee/milestone/labels, in which case who made that change is already visible in the comments.
See merge request !1075
Ensure old namespace directory exists before moving it
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fixes#983
See merge request !1101
Only publish ssh key-type and key
Now when requesting my keys; my emailadres is exposed. [My keys](https://gitlab.com/zj.keys)
To prevent harvesting only key-type and the key itself are displayed instead of all data supplied when uploaded.
See merge request !850
Add gitlab-shell to error message to give user a clue that something may be wrong there.
Ran into this in #2082. User was told that repositories were created when they were
not due to hooks symlink being wrong.
Fix (i.e. prevent) access to disabled features for unauthenticated users
Unauthenticated users had access to disabled features of public
projects. The code has been slightly refactored so that feature checks
are done in a separate method and can also be applied for public access.
See merge request !1006
Unauthenticated users had access to disabled features of public
projects. The code has been slightly refactored so that feature checks
are done in a separate method and can also be applied for public access.
Recalculating graph_log took minutes on a large repository since each
of the 6000 commits would need to calculate the diff. Since graph_log
does not appear to be used, remove it from the list of things to update.
For the Linux kernel repository, this reduced the ProjectCacheWorker time
from 8+ minutes to 16 seconds.
Closes#2016
The label page was added to navigation for unauthorized users because
the previously used milestone read permission was still checked. This
has been fixed and read access to labels is now granted (again) for
public projects.
This regression has been introduced in
07efb17e10 (7.12).
See also 9bcd36396b.
Refs !836, !842.
Validate format of project_url and token for GitLab CI service.
If `project_url` and `token` for are invalid, [service_hook creation](https://gitlab.com/gitlab-org/gitlab-ce/blob/7-13-stable/app/models/project_services/gitlab_ci_service.rb#L30-34) will silently fail due to validation of URL in `WebHook`.
Given that token is a sequence of numbers and letters for GitLab CI making sure that there are no unexpected characters should be enough to prevent service_hook being nil.
Fixes#1997
See merge request !987