YANPE

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36250 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Make sure StandardButton not clickable when disabled

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36251 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Cache points in Polygon[{A,B,C}]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36252 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e