Added support for symbols in collections
Added support for set collections
Spec for set collections and symbols in collections
Cleaned up Set support by using the splat operator
Test radio input with sets and symbols
Tests and examples for sets and symbols in radio input
Test using sets and symbols with select input
allow to skip attributes when rendering default inputs
added some rspec tests
add Rails 4 to compatibilty in README
drop 1.8.7, ree and 1.9.2 from travis
minimum Ruby 1.9.3
no need to be strict on nokogiri version now that we're on 1.9.3 only
remove Rails 3.0 and 3.1 from Appraisals
require actionpack >= 3.2
drop 3.0 and 3.1 from .travis.yml
drop Rails 3.1 code path for CSS files in install generator
fix generator comment
rails 3.1 introduced button_tag, no need for work-around
update to rspec-rails 2.14