Upgrade systemjs to 4.0.2 (from 3.1.6)

Author: bdukes

package.json

@@ -70,7 +70,7 @@
     "select2": "4.0.7",
     "spectrum-colorpicker": "1.8.0",
     "swiper": "4.5.0",
-    "systemjs": "3.1.6",
+    "systemjs": "4.0.2",
     "tableexport": "5.2.0",
     "tinymce": "5.0.11",
     "underscore": "1.9.1",

yarn.lock

@@ -5336,10 +5336,10 @@ symbol-observable@1.0.1:
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
   integrity sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ=
 
-systemjs@3.1.6:
-  version "3.1.6"
-  resolved "https://registry.yarnpkg.com/systemjs/-/systemjs-3.1.6.tgz#0a13f45d2c3f7509824be46033a61115eda1903d"
-  integrity sha512-cXin4Z7FWf/eANmvuR5uE8qfPqMlkjyNZbayO/Mf3+AvSOegYY/3myiWgioKLOWUeB16if3VYqdk7HXXmgOL8Q==
+systemjs@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/systemjs/-/systemjs-4.0.2.tgz#9ccab407bb1e7ef774e0a8e6ebab1a2104045585"
+  integrity sha512-pwVxyK545WKMi4Duw1LQprulXi1Z8/xiT8P4TkXAXd3oEsusOI2XFTSfldg+/NMfPC+CfQGI5B7MUpqdhflHpg==
 
 tableexport@5.2.0:
   version "5.2.0"