Merge pull request #176 from spmjs/master

Adding meta data for [SPM](http://www.spmjs.io/) package manager

Author: rodneyrehm

package.json

@@ -96,5 +96,8 @@
     "jshint-stylish": "~0.1.5",
     "grunt": "~0.4.2",
     "grunt-contrib-jshint": "~0.8.0"
+  },
+  "spm": {
+    "main": "src/URI.js"
   }
 }