MDL-40956 Course: AJAX course duplication
MDL-42564 ActionMenu: Replace actionmenu icon with new style
MDL-42564 Course: Replace group mode icons with larger versions
MDL-40975 ActionMenu: Convert text-based icon to the caret style
MDL-40975 Theme: Change the actionmenu icons back to 12px
MDL-40975 ActionMenu: Ensure we maintain consistent tab order

When the actionmenu is open, we should focus on it's first element, and
then naturally tab through it. Tabbing from the end should take us to the
first element after the menu button. This may not be the same as the first
element after the menu itself because of the nature of primary and
secondary action links. We also need to shift-tab back in the same manner.
MDL-40975 Theme: Rebuild of bootstrap css