it is quite often when we need to have an autocomplete element that searches courses that
have completion enabled. This commit adds an option for the 'course' form element, and also
changes two places where we search for courses with completion. This should fix MDL-58989
The badges feature allows to integrate Mozilla "Open Badges" to issue, assign,
manage and display digital badges in Moodle. This feature supports:
-- badge creation and issuing based on criteria
-- badge baking and verification service
-- direct pushing of internal badges to external backpack
-- interanl and external badge display in Moodle
-- Moodle block to display latest badges