fixed localization of bootstrap's checkboxselectmultiple and radioselect
input values
added test case to confirm l10n is working
Merge branch 'master' of github.com:gabejackson/django-crispy-forms into dev

Conflicts:
	crispy_forms/templates/bootstrap/layout/checkboxselectmultiple.html
	crispy_forms/templates/bootstrap/layout/radioselect.html
RadioSelect and CheckboxSelectMultiple texts should be unlocalized

Test cleanup, CHANGELOG and CONTRIBUTORS for #214