Refactor Web\UrlManager (getCanonicalByDocument, getByFunction)

Refactor \Rbs\Website\Documents\Website::getUrlManager()
Delete unused contentType block parameter.
Update admin richtext control (images, video, file download and internal links).
Merge branch 'intportg-dev'

Conflicts:
	Change/Http/Web/UrlManager.php
	Plugins/Modules/Rbs/Admin/WysiwygHtmlParser.php