0.5.4.patrick

Hi, 
I've made several changes to support the new Bootstrap 3.0, and to support a responsive placement of the pickerPosition. Please feel free to include in your branch.
Best regards,
Patrick

Previously, non-responsive placement:
![non-responsive](https://f.cloud.github.com/assets/859611/1083144/72aaee06-1594-11e3-8eb0-3dd589488923.png)

With responsive placement enabled:
![responsive](https://f.cloud.github.com/assets/859611/1083148/7dbbaa92-1594-11e3-96aa-22ac591aef9c.png)