Fix transformed cone when height is negative

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36539 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4541 - fixing CAS rtl orientation

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36540 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e