Demographics JSON from new ages.py study.
Merge branch 'master' of github.com:Bitergia/eclipse-dashboard

Conflicts:
	browser/data/json/its-demographics-aging.json
	browser/data/json/its-demographics-birth.json
	browser/data/json/mls-demographics-aging.json
	browser/data/json/mls-demographics-birth.json
	browser/data/json/scm-demographics-aging.json
	browser/data/json/scm-demographics-birth.json