Load platform-dependent RTL styles

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29528 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Net of any pyramid, with convex bottom face or not

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29529 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e