recursive delete brought back and clean up / error trapping for menu items that were last children being deleted

set active moved to core api library and user defined reset functions tested instead of assumed to avoid js error in rare cases (like keyboard based esc to move an item)

when moving items around the outline, the outline is forced open to avoid conflicts between drupal's native table behavior and outline designers

documentation updated for how to use the Shift control right and ESC functionality to update outline via keyboard!

better selection and handling for targetting IDs, also using classes over css properties so they can be targetted