Keep original href visible on dropdowns' top item.

See http://twitter.github.com/bootstrap/javascript.html#dropdowns for
details.
Fixed escaped html in link_to

When menu was rendered, <b class="caret"><b> was escaped and added as text to dropdown menu links. I fixed it.
Merge pull request #6 from tomeduarte/af948df6a99822d19e7766a8299088b5b1a6feaf

In order to keep URLs intact, use the data-target attribute instead of href="#".
Merge pull request #8 from leemour/master

Fixed escaped html in link_to
Ignore .ruby-version, and add .ruby-gemset
Implement split dropdowns
Fixes for README conversion to markdown
Bump to version v1.0.0 due to potential breakage for old Bootstrap
pulled changes