fix(package): update basic-auth to version 2.0.0

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/ember-fastboot/fastboot-app-server#readme",
   "dependencies": {
-    "basic-auth": "^1.0.3",
+    "basic-auth": "^2.0.0",
     "chalk": "^2.0.1",
     "compression": "^1.6.2",
     "express": "^4.13.3",