Changes proposed for version 0.1.2

Hi Rich,
I found your analytics repo via bower. I am using it with some modifications and plan to make more changes to accommodate more flexibility needed in my projects.
One of the big changes you will notice is that I added the extra parameters (including value) since they are allowed in the event method.

Feel free to include some or none of the changes.
thanks!

p.s. If you decide to also change the bower.json file, please exclude the url change:
"homepage": "https://github.com/lodalo/Analytics.js.git"