Minor changes/fixes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23775 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3065: step by step towards the second Graphics View

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23776 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e