opnionated ts config

Author: davidmeirlevy

template/tsconfig.json

@@ -4,11 +4,20 @@
       "dom",
       "es5",
       "es2015",
-      "es2015.promise"
+      "es2016",
+      "es2017",
+      "es6",
+      "esnext"
+    ],
+    "exclude": [
+      "typings/index.d.ts",
+      "typings/index",
+      "node_modules"
     ],
     "module": "esnext",
     "moduleResolution": "node",
-    "target": "es5",
+    "declaration": true,
+    "target": "es2015",
     "sourceMap": true,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,