avoid double loaded materialListElements

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36228 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
new filter


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36229 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
WebSimple without /web again

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36230 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e