mozilla/nunjucks v3.1.3

on GitHub

Add forceescape filter. Fixes #782

Fix regression that prevented template errors from reporting line and column number. Fixes #1087 and #1095.

Fix "Invalid type: Is" error for {% if value is defined %}. Fixes #1110

Formally drop support for node v4 (the upgrade to babel 7 in v3.1.0 made the build process incompatible with node < 6.9.0).