feat(gui): update deps

Author: rande

gui/package.json

@@ -8,8 +8,8 @@
   },
   "private": true,
   "dependencies": {
-    "material-ui": "0.16.0",
-    "prettier": "^1.14.3",
+    "material-ui": "0.20.2",
+    "prettier": "^1.18.2",
     "react": "15.3.2",
     "react-dom": "15.3.2",
     "react-markdown": "2.4.2",
@@ -20,16 +20,16 @@
     "redux": "3.6.0"
   },
   "devDependencies": {
-    "babel-cli": "6.16.0",
-    "babel-core": "6.17.0",
-    "babel-loader": "6.2.5",
-    "babel-preset-es2015": "6.16.0",
-    "babel-preset-react": "6.16.0",
-    "babel-preset-stage-0": "6.16.0",
-    "json-loader": "0.5.4",
-    "parcel-bundler": "^1.10.1",
-    "react-hot-loader": "1.3.0",
+    "babel-cli": "6.26.0",
+    "babel-core": "6.26.3",
+    "babel-loader": "8.0.6",
+    "babel-preset-es2015": "6.24.1",
+    "babel-preset-react": "6.24.1",
+    "babel-preset-stage-0": "6.24.1",
+    "json-loader": "0.5.7",
+    "parcel-bundler": "^1.12.3",
+    "react-hot-loader": "4.12.7",
     "react-transmit": "3.2.0",
-    "whatwg-fetch": "1.0.0"
+    "whatwg-fetch": "3.0.0"
   }
 }