More Save GUI

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26684 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
back button - GUI switch

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26685 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Source format

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26686 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e