Merge pull request #45 from geekwright/update20190519

Upstream updates

Author: geekwright

composer.json

@@ -8,12 +8,12 @@
         "ext-PDO": "*",
         "ext-session": "*",
         "ext-pcre": "*",
+        "ext-json": "*",
         "league/container": "~2.0",
         "doctrine/dbal": "2.5.*",
-        "psr/log": "1.0.*",
+        "psr/log": "1.1.*",
         "patchwork/utf8": "^1.3",
         "kriswallsmith/assetic": "1.4.*",
-        "symfony/process": "^3.0",
         "symfony/console": "^3.0",
         "ptachoire/cssembed": "1.0.*",
         "lmammino/jsmin4assetic": "1.0.*",