config lgtm to disable maintainer to LGTM himself's PR

Fix sender of issue notifications

It is the FROM field in mailer configuration that needs be used,
not the USER field, which is for authentication.

Closes https://github.com/gogits/gogs/issues/3615

Use proper url for libravatar dep

* Fix mention in comments like (@dblk)

* Better fix to avoid making link for "Hello@DblK"

Add new locale Serbian (Cyrillic)

Closes #3591

* Add ability to explore organizations

* Use right icon for org explore links

* Add option to hide footer load times

* Rename option variable + minor changes

- Refactor code to use sync.UniqueQueue
- Closes #3509

These are to follow the GNU Coding Standards Makefile Targets:
https://www.gnu.org/prep/standards/html_node/Standard-Targets.html

* Can use a predefined set of labels

* Change UI

* Fix HTML file indentation

* Avoid reading file from other directory (security issue)

* Apply a better fix

* Remove not used variable

* Merge upstream/develop

* Do modifications

* Raname

* remove binding + rename variable

[CI SKIP]

Git convention has it capitalised.