removed spreadsheet file browser options

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35207 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
better scrolling increment for script panel

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35208 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e