Merge pull request ProfessionalWiki#68 from ProfessionalWiki/rel

Prepare for release 4.6.1

Update release-notes.md

Merge pull request ProfessionalWiki#48 from ProfessionalWiki/rel450

4.5.0 release

Make 4.4.3 release (ProfessionalWiki#46)

* Add RN about 4.4.3
* Increment version to 4.4.3

Update release-notes.md

Update extension.json

Revert 4.3.x work

Include ResourceLoaderSCSSModule in autoloader

Use MediaWiki autoloader

Update version number