* Unit tests passing with code coverage reporting.

* ES5 compatible dist/blockstack.js bundle being generated and passing e2e tests.

tsconfig.json

@@ -1,16 +1,15 @@
 {
   "compilerOptions": {
       "target": "es2018",
-      "module": "umd",
-      "esModuleInterop": true,
+      "module": "commonjs",
       "moduleResolution": "node",
+      "esModuleInterop": true,
       "declaration": true,
       "noImplicitAny": false,
       "outDir": "lib",
       "sourceMap": true
   },
   "include": [
-    "src/**/*",
-    "tests/unitTests/src/**/*"
+    "src"
   ]
 }