Added in average within Parse with a global average table.
Refactored global averaging so that it is calculated on the fly.
Fixed issue with users who have no files to run metrics on. Server now returns {}.
Fixed issue with Parse object being treated as a plain JavaScript object.
Fixed issue that occurred while checking to see if the user's average object was empty.
Merge branch 'feature/parse-average' into develop

Conflicts:
	application.js