179-hotfix: Fixed FCE count bug.

Added in removed changed from remove-mycourses branch.
Created new file fce_count.js. It was too difficult to find fce related functions.
179-hotfix: Added use-strict statement back in.

Took it out when playing around with a previous hotfix. Changes persisted into this branch.
Added it back in.
Merge pull request #180 from Ian-Stewart-Binks/179-hotfix

179-hotfix: Fixed FCE count bug.