fix collection_radio/check_box calls
radio_buttons and check_box fixes
radio_buttons and check_box fixes
Fix the gemspec for padrino 0.11.
Fix string concatenations.
Fix rendering in slim templates.
Merge branch 'fixes_for_slim' into padrino-0.11

Conflicts:
	lib/bootstrap_forms/form_builder.rb
	lib/bootstrap_forms/helpers/form_tag_helper.rb
Merge pull request #5 from scaryzet/padrino-0.11

Code update for padrino 0.11 (html_safe)