Style required inputs

[codebeige]

I think we could make use of a harmonized way of marking required inputs across applications. As this is not done by Bootstrap per se, not sure if this would go here, though.

@bnvk @tthew Any thoughts on that?

[codebeige]

If we go with the classical asterisk approach, this could be a starting point:

.form-group.required {
  label:after {
    content: "  \f069";
    font-family: FontAwesome;
    font-size: .4em;
    vertical-align: super;
  }
}

Looks something like this:

[bnvk]

@codebeige I think this should definitely go here in the theme as a Bootstrap addon or mixin or such!