See the branch 2.x-twig for list of commits on twig... Kuddos @halfdan for your work!

Here are some updates:
 * Removing |raw from the codebase.
 * Disabling autoescape by default (in Twig_Environment constructor: 'autoescape' => false )
 * Adding |e('html') where html entities are needed
 * Fixing parse error in goals
Removing final |raw from codebase
 Refs #4019
Merge remote-tracking branch 'origin/2.x-twig' into 2.x-twig