data-param-json for faster file loading, part 1

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34085 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
New Styling for checkboxes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34086 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e