Originally by: Developed by Moodle Partner CV&A Consulting, funding Universitat de Barcelona (http://www.ub.edu)
Updated the original plugin to work with Moodle 3.5+.
Download and unzip the file. Rename the resulting directory to ubhotspots and move it to /moodle/question/type/ Don't forget to go to Notifications page in your Moodle Site Administration.
More information see http://docs.moodle.org/en/Installing_contributed_modules_or_plugins