Refactoring of views menu

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34556 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Force 3 values for settings to ensure ev 3D compatibility

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34557 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e