spreadsheet cell formats synced with insert/delete row or column

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35977 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
enabling auto complete in web spreadsheet (not quite working yet)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35978 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e