Add note in README about tagged releases vs master branch.
Update foundation, jekyll, and compass to fix compile issue.
Update highlightjs to 8.3.0.
Update normalize-css to 3.0.2.
Update foundation to 5.4.7.
Check-in Gemfile.lock.
Use https for link to demo site.
Fix link to humans.txt.
Merge branch 'master' into demo
Use https in _config.yml.
Merge branch 'master' into demo

Conflicts:
	_config.yml