enableSemantics no longer needed
From semantic-mediawiki.org
Fragment of a discussion from User talk:Kghbln
James, can you please update the INSTALL.md file? You know best what the deal with the settings invocation is now.
I believe that indeed nothing has really changed except that SMW does not have to be invoked as before and that the $smwgNamespaceIndex parameter has to be set prior to enabling semantics as Daniel stated.
