migrate to babel 7, webpack 4, dep updates, lots

.babelrc

@@ -1,3 +1,34 @@
 {
-  "presets": ["env", "react", "stage-0"]
+  "presets": [
+    ["@babel/preset-env", {"modules": "commonjs"}],
+    "@babel/preset-react"
+  ],
+  "plugins": [
+    "@babel/plugin-syntax-dynamic-import",
+    "@babel/plugin-syntax-import-meta",
+    ["@babel/plugin-proposal-class-properties", { "loose": true }],
+    "@babel/plugin-proposal-json-strings",
+    [
+      "@babel/plugin-proposal-decorators",
+      {
+        "legacy": true
+      }
+    ],
+    "@babel/plugin-proposal-function-sent",
+    "@babel/plugin-proposal-export-namespace-from",
+    "@babel/plugin-proposal-numeric-separator",
+    "@babel/plugin-proposal-throw-expressions",
+    "@babel/plugin-proposal-export-default-from",
+    "@babel/plugin-proposal-logical-assignment-operators",
+    "@babel/plugin-proposal-optional-chaining",
+    [
+      "@babel/plugin-proposal-pipeline-operator",
+      {
+        "proposal": "minimal"
+      }
+    ],
+    "@babel/plugin-proposal-nullish-coalescing-operator",
+    "@babel/plugin-proposal-do-expressions",
+    "@babel/plugin-proposal-function-bind"
+  ]
 }