Include bootstrap
First bootstrap

- arround .container
- .page-header
- checkbox and checkbox-inline
Remove jQueryUI for tabs. use Bootstrap JS
Change my table stylesheet to bootstrap's
Use Collapse on Bootstrap

http://getbootstrap.com/javascript/#collapse
Use bootstrap-sass

HTML に class ごりごり書くのつらくなってきたので
最低限の class だけを記述して sass の方で extend する方式にした
Use boostrap ".panel" on steps.
No display step_body when not has arguments
fix step exceptions.
fix specs
Merge pull request #42 from gongo/use_bootstrap

Use bootstrap