Узнать версию Joomla

Узнать можно:

• http://qaru.site/questions/2193688/how-to-get-joomla-version-by-http 
• https://stackoverflow.com/questions/28091116/how-to-get-joomla-version-by-http/29598510 
• https://github.com/CB9TOIIIA/joomla-version-detect