Set main package.json entry

Author: jantimon

package.json

@@ -3,6 +3,7 @@
   "title": "jQuery requestAnimationFrame",
   "description": "Replaces the standard jQuery timer loop with requestAnimationFrame where supported. Requires jQuery 1.8",
   "version": "0.1.3pre",
+  "main": "dist/jquery.requestAnimationFrame.js",
   "homepage": "https://github.com/gnarf37/jquery-requestAnimationFrame",
   "author": {
     "name": "Corey Frang",