While we're developing our component using Protostar, we have found that the
btn-group-yesno classes are not "native" per se, in that they're not necessarily supported in other templates such as Rockettheme/Gantry.
The classes are found in Bootstrap, but the RT template seems to override them somehow rendering some useless HTML where the button group is expected to appear.
Is there a way to include the Bootstrap css/logic in the component (without forcing any template overrides), in spite of what the templates might be doing? I'd like to insure that those classes are available and working without special instructions for a particular template.