upgrade libs

* react-codemirror2

package.json

@@ -114,7 +114,7 @@
     "react-bootstrap": "^0.32.0",
     "react-bootstrap-typeahead": "^2.0.2",
     "react-clipboard.js": "^1.1.2",
-    "react-codemirror2": "^3.0.7",
+    "react-codemirror2": "^4.0.0",
     "react-dom": "^16.0.0",
     "react-dropzone": "^4.2.7",
     "redis": "^2.7.1",

yarn.lock

@@ -5028,9 +5028,9 @@ react-clipboard.js@^1.1.2:
     clipboard "^1.6.1"
     prop-types "^15.5.0"
 
-react-codemirror2@^3.0.7:
-  version "3.0.7"
-  resolved "https://registry.yarnpkg.com/react-codemirror2/-/react-codemirror2-3.0.7.tgz#d5d9888158263ae56da766539d7803486566ab9f"
+react-codemirror2@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/react-codemirror2/-/react-codemirror2-4.0.0.tgz#88a30bb082cb87755a80e057d4c7b577456c38f0"
 
 react-dom@^16.0.0:
   version "16.2.0"