separated test and lint procedures

added coverage to test command
part of resolving #622

Author: bmuenzenmeyer

package.json

@@ -54,8 +54,9 @@
   ],
   "license": "MIT",
   "scripts": {
-    "test": "eslint core/**/*.js && tap test/*_tests.js --reporter spec",
-    "lint": "eslint core/**/*.js"
+    "lint": "eslint core/**/*.js",
+    "pretest" : "npm run lint",
+    "test": "tap test/*_tests.js --reporter spec --coverage"
   },
   "engines": {
     "node": ">=4.0"