Merge pull request #1 from taryneast/master

Bootstrap justified button group for radio-btns
Adds the ability to set options on group and label.

This is done using group_options and label_options
keys which can be passed to the helper methods and
are in turned passed to the group and label methods.
Add help-text generated by I18n values.
Bump to 0.0.6
Fix control-label bug.
Bump to 1.0
Adds simple checkbox that can be used without a form-group.
Version 0.1.1