Update README.md

Changed the code to reflect recent updates in Formtastic API. f.buttons is now f.actions, and f.commit_button is f.submit.
Merge pull request #58 from hocu/patch-1

Update README.md
update README to upstream (Formtastic) 2.2+ API spec
Fixed a bug with precedence and label_outside option for checkbox
Merge pull request #61 from msaspence/master

The option :label_outside for boolean input not rendering input when sent to true
Remove self-dependency from gemspec.
Adding bootstrap-friendly "semantic_errors" helper (and accompanying
passing spec)
Merge pull request #60 from nzaillian/master

"semantic_errors" helper
fix issue #63

https://github.com/mjbellantoni/formtastic-bootstrap/issues/63
fix semantic_errors CSS

My goal here is to remove the extra vertical space occurring after the
ul.error-list element. The source of the space, from Bootstrap, is:

ul, ol {
  padding: 0;
  margin: 0 0 10px 25px; }

The simplest change is to modify `margin-bottom`. The code that I'm
replacing, `margin: 0` pressed the list bullets against the left of the
alert box with no margin.
Merge pull request #66 from bluemont/fix-alert-box-css

Fix alert box css
Remove circular self-requirement from Gemfile.lock