Corona Release 21-03-20

See merge request !351

[BUGFIX] modify VCS repo for t3g/hubspot-forms

Closes #473

See merge request !349

Since bitbucket.typo3.com does not exist anymore,
and the package "t3g/hubspot-forms" has been moved
to GitHub, the URL for the VCS section in composer.json
has been adapted.

Process:
- Manually updated the URL (no composer config repositories
  as the current composer.json was modified manually already)
- ran composer update t3g/hubspot-forms

Resolves: 473

Count updated issues and MRs in contributions

See merge request !344

Revert "Remove custom xml namespaces for Fluid from RSS feed templates"

See merge request !345

[TASK] Adjust security.txt

Closes #467

See merge request !348

Resolve "Add security.txt to public webroot"

Closes #467

See merge request !347

Resolve "Add security.txt to public webroot"

Closes #467

See merge request !346

This reverts commit f5bb64e8.

Release 29-01-20

See merge request !343

Boost events to be displayed at top of the search results

See merge request !342

Resolve "Remove zip codes from event listings"

Closes #465

See merge request !341

Activate typoscript linter and update TS files

See merge request !339

Set variable keep_releases to 2 for deployment.

See merge request !340

* Change file extensions to .tsconfig and .typoscript
* Remove obsolete imports (done in template record) -> should be changed in a separate task
* Remove config for realurl
* Move TS integration from ext_tables.php to Overrides file
* Move code to ext_typoscript_* to include code without need of integration

Disable backend functionality for shariff to prevent external calls

See merge request !337

Add possibility to fetch contributor information

Closes #461

See merge request !338

Remove custom xml namespaces for Fluid from RSS feed templates

Closes #459

See merge request !335

Remove unstyled search button

Closes #457

See merge request !334

Update t3olayout to 4.1.3

Closes #390

See merge request !333

Add events to search

See merge request !336

Usage: Call url <domain>/?contributions with GET parameters for date (d, m and y) and POST paramater Private-Token with GitLab API Token.