Was proposed in #24833

This reverts commit c2093486, reversing
changes made to 4b7ec44b.

This reverts merge request !8573

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

if user has either push or merge permissions

+ Change log entry for fix to creating a branch matching a wildcard fails

- allows unsubscription processing of email in format "reply+%{key}+unsubscribe@acme.com" (example)
- if config.address includes %{key} and replies are enabled every unsubscriable message will include mailto: link in its List-Unsubscribe header

`endpoint.route` is calling `env[Grape::Env::GRAPE_ROUTING_ARGS][:route_info]`
but `env[Grape::Env::GRAPE_ROUTING_ARGS]` is `nil` in the case of a 405 response
Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

This commit also makes it possible to configure exclusive groups.
There can be only one detailed status matched within an exclusive group,
which is important from the performance perspective.

This MR enables rendering of PlantUML diagrams in Asciidoc documents. To add a
PlantUML diagram all we need is to include a plantuml block like:

```
[plantuml, id="myDiagram", width="100px", height="100px"]
--
bob -> alice : ping
alice -> bob : pong
--
```

The plantuml block is substituted by an HTML img element with *src* pointing to
an external PlantUML server.

This MR also add a PlantUML integration section to the Administrator -> Settings
page to configure the PlantUML rendering service and to enable/disable it.

Closes: #17603