MDL-39814 actionmenu: tweaked the action menu post integration

The following changes have been made:
 * course_section_cm_edit_actions now allows the caller more options for the
   display of the action menu.
 * The site menu block now disables the JS enhancement of the actionmenu so
   that it displays as it did before. After more testing this seemed like the
   only option that worked in the limited space of the block when it had
   several modules.
 * draganddrop of resources now triggers the action menu enhancement as well.
 * Fixed display of title when the menu is not being enhanced by JS.
 * Fixed the alignment of the completion icon in the bootstrapbase theme.
 * Tweaked the CSS for the standard theme.