Merge pull request #549 from perftools/deps-update

Update composer dependencies

Author: glensc

composer.json

@@ -29,7 +29,7 @@
         "slim/slim": "^3.12",
         "slim/twig-view": "^2.5",
         "symfony/options-resolver": "^3.3",
-        "twig/twig": "^3.11"
+        "twig/twig": "^3.19"
     },
     "require-dev": {
         "ocramius/lazy-property": "^1.0 || ~2.1.0",