fix #1457 Name of the checkbox and radio xxx[] can not work normally

[moioo]

<input type="checkbox" name="ids[]"  id="ids_1" value="1" required="true" minlength=1>
<input type="checkbox" name="ids[]"  id="ids_2" value="2" required="true" minlength=1>

valid runtime error: Error: Syntax error, unrecognized expression: #ids[]-error

The cause of the error elements ID name has invalid characters

        showLabel: function( element, message ) {
            var place, group, errorID,
                error = this.errorsFor( element ),
                elementID = this.idOrName( element ),
                describedBy = $( element ).attr( "aria-describedby" );
            if ( error.length ) {
                // refresh error/success class
                error.removeClass( this.settings.validClass ).addClass( this.settings.errorClass );
                // replace message on existing label
                error.html( message );
            } else {
                // create error element
                error = $( "<" + this.settings.errorElement + ">" )
                    .attr( "id", elementID + "-error" )
                    .addClass( this.settings.errorClass )
                    .html( message || "" );

see #1457

[staabm]

Could you please fix the CS issues and add a unit test?

[jzaefferer]

The fix doesn't make sense (you need to escape, not replace with a dash), and the test doesn't work (it passes without the "fix").

[staabm]

Fixed with #1614