Add shuffle filter to Twig

Signed-off-by: Gawain Lynch <gawain.lynch@gmail.com>
No info-pops on "changelog" in the sidebar. Less is more, kill your darlings.
Tweaking the "info" popup.
Swipe out JS obj literal trailing comma and spaces
Merge pull request #1446 from GawainLynch/feature/TwigShuffleFilter

Add shuffle filter to Twig
Merge pull request #1447 from rixbeck/master

Swipe out JS obj literal trailing commas and spaces