Added tests and coverage scripts

Author: noel

package.json

@@ -1,10 +1,11 @@
 {
   "name": "promise-crawler",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Promise support for node-crawler (Web Crawler/Spider for NodeJS + server-side jQuery)",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "node_modules/mocha/bin/mocha",
+    "coverage": "./node_modules/nyc/bin/nyc.js npm test && ./node_modules/nyc/bin/nyc.js report --reporter=text-lcov | coveralls"
   },
   "repository": {
     "type": "git",
@@ -35,4 +36,4 @@
     "mocha-lcov-reporter": "^1.3.0",
     "nyc": "^12.0.2"
   }
-}
+}