Move the Bootstrap helpers into the helpers sub-directory
Implement a NestedFormBuilder based on the nested_form gem
Trigger the after_nested_form_callbacks method
give bootstrap_nested_form_for and bootstrap_form_for the same method def
Use String interpolation for field_options[:left] so a nil doesn't cause an exception
Test if fields_options[:label_col] is present instead of whether it exists
Merge pull request #66 from bootstrap-ruby/nested_form_support

Nested form support