create and edit working. not quite delete yet. also,

create and edit working. not quite delete yet. also,

broke out line numbers and selectors into a separate dojo module for
flattener grid and autogrid to share. don't quite have it right though,
as flattenergrid works but for autogrid you can no longer see the lineno
and selector columns (although they are present in
grid.structure[0].cells[0])

hrm

Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>