Update path to mocha file

Author: blakeembrey

package.json

@@ -3,7 +3,7 @@
  "description": "Express style path to RegExp utility",
  "version": "0.1.2",
  "scripts": {
- "test": "istanbul cover _mocha -- -R spec"
+ "test": "istanbul cover node_modules/mocha/bin/_mocha -- -R spec"
  },
  "keywords": [
  "express",