Added missing meta lang variables.
Big clean up.
Fixed I18n behaviour of metaAbove, metaBelow and readMoreText.
Fixed package link in package.xml.
Added template listener to install.
Changed necessary group options.
Fixing event listener issue.
Fixed unclosed lang tag.
Fixed typo.
Fixed required group permissions.
Added missing import.
Fixed issue with already defined constant.
Removed version constant.
Added missing lang variables.
Fixed widgets.
Tagging of contents in ACP works now.