stouset/twitter_bootstrap_form_for — pull request #69 by hdgarrood (2012-10-07 04:57:52+00:00)
Title: add a price_field method

Assuming we're in a `twitter_bootstrap_form_for` block with `user` as the block variable:

the attached code makes this:
```
= user.price_field :balance
```
equivalent to this:
```
= user.text_field :balance, :add_on => :prepend do
%span.add-on= t('number.currency.format.unit').html_safe
```