Sticky Edit Actions AKA "Sticky Submit" sticks element with the ID of "edit-actions" to the bottom of the page when scrolling away from where it normally is and leaves it alone when not.

* There is no configuration, just enable and it should just work on all admin paths.

* Tested with core jQuery, 1.4.4.

* Tested with default admin theme, Seven.

* Thanks to Caleb Troughton for jQuery Waypoints!

Known issues:

Does not work with Views or Module Filter due to their unique/non-Drupal placement of buttons.

Drupal 8 (D8):

See this issue https://www.drupal.org/project/sticky_edit_actions/issues/2870704