* To keep naming in sync with code, to make examples work.

* As long as we don't make use of intersphinx disable it to speed up
  rendering of documentation.

* Remove unnecessary documentation.
* Remove unused code.
* Add missing documentation.

Relates: #72

Relates: #72

* Add further tests with quotes.
* Handle prefix in strings.
* Remove old originalTokenContent which is no longer in use, as we use
  str_replace, introduced in earlier commit.

Relates: #72

* Make MissingNamespaceSniff work again.
* Move to old namespace as it's a custom sniff, not a general one.
* Do not use new feature here, implement logic internal.
* Remove message from ruleset, use it directly.

Relates: #72

* As sometimes not the whole token should be replaces, but only the
  classname within the token, we replace them always this way.
* Before the refactoring, that was done in the concrete sniffs.
* Affected are e.g. php doc comments.

Relates: #72

* Remove unnecessary information to shorten output.
* This should make it easier to get the actual issue.

* Fix wrong class name, to allow features to match.

Relates: #72

* All tests where only file name in diff was wrong are working again.

Relates: #72

* Make TypeHintSniff tests pass again.
* Fix typo in class name preventing new feature mechanism from matching.

Relates: #72

* Make use sniff tests pass again.

Relates: #72

Relates: #72

* Have all feature related classes in a single namespace.

Relates: #72

* Migrate class names.
* Add new architecture of "Features".
* Configure old assignments for new features.
* Rename necessary parts.

Relates: #72

TASK: Remove no longer used .scrutinizer.yml

See merge request !76

* As we don't use Scrutinizer any longer, but our own CI on gitlab.

Improve CI file

See merge request !75

TASK: Update readme

See merge request !73

* Don't repeat yourself.
* Make file shorter and easier to read.
* Also make it easier to change something.

* As second report is not necessary and won't be generated since the
  first call will return exit > 0

* As no further calls are made once a call failed.
* Therefore call all reports in a single command.

* As documentation exists now, we don't need all the information in
  readme.
* Just link the official documentation.
* We can safely point to the domain and adjust the redirect at read the
  docs itself.

Relates: #63, !71

FEATURE: Add documentation rendering

See merge request !71

Feature/64 add missing tests

Closes #64

See merge request !72

* To show what's also working and what will potentially provide non
  helpful warnings.

Relates: #64

Resolves: #64

Relates: #64

* Fix broken links
* Fix broken syntax

Relates: #63

* Remove artifacts which are not necessary as output is shown in job

* As we use a different theme.

Relates: #63

* Add further information and sections, e.g. about contribution and
  extending.

Relates: #63

* Check for syntax issues.
* Check for link integrity.

* Update .gitlab-ci.yml to allow running
  gitlab-runner exec docker render:documentation
  locally