Reverting [23389] --- we will not use the CDN for JNLPs


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23391 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Adding CloudFlare purge facility (step 1)


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23392 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fixing apostrophes


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23393 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e