Some css discrepancies between selectize and bootstrap 3.2.0

I fixed some issues with the bootstrap3 styles:

* bootstrap3 input transition
* support for .has-success, .has-warning and .has-error
* add right padding on .has-feedback
* fix height difference between input and selectize

See http://plnkr.co/edit/rci0eIvARvY3nEMQ40uq?p=preview

Tested in:
* Chrome 36
* Firefox 31
* Internet Explorer 10
* Internet Explorer 9