style of buttons in web

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36508 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4560 Stacked boxplots diagram appears.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36509 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
no rename if title hasn't changed

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36510 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e