tidy up the code

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34588 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
tidy up the code

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34589 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
No "stick to edge" / "cross at" for 3D axes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34590 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e