add method to remove icon from help block

[Ondřej Misák]

Hi, please add method for this. I using font-awesome instead of glyphicon and i have useless class in my code.

Thanx

[Robert Pösel]

Hi, feel free to send pull request. I don't have too much time these days.

[Roland Toth Pal]

I use this to remove:

if (window.LiveForm) {
    LiveForm.setOptions({
        'messageErrorPrefix': ''
    });
}

[Robert Pösel]

Aha, thanks for mentioning that.

@misaon If you don't want to see any prefix, just set it empty in LiveForm options, as mentioned above. Or set it regarding your needs, just look at live-form-validation.js source code for example.