#4633 more selection clearing

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36961 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
always put ouput type in object command XML (object may be defined later in XML)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36965 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4633 reverted some changes, leaving to Mathieu (note: Extrusion does not work at all now)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36966 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e