Do not hardwire the inputex.InPlaceEdit as wire label editor

[sprat]

Actually, the inputex.InPlaceEdit is hardwired as the wire label editor, so it's not easy to customize its behavior except by monkey patching it, which is evil. It would be better to implement the Wire.renderLabel function like this, so it would just be a matter of overloading the Wire.createLabelEditor function to change it:

     renderLabel: function() {
        this.labelEl = WireIt.cn('div',{className:"WireIt-Wire-Label"}, this.labelStyle );

        if(this.labelEditor) {
            this.labelField = this.createLabelEditor(); 
            this.labelField.setValue(this.label);
        }
        else {
            this.labelEl.innerHTML = this.label;
        }

        this.element.parentNode.appendChild(this.labelEl);

    },
    createLabelEditor: function() {
        return new inputex.InPlaceEdit({parentEl: this.labelEl, editorField: this.labelEditor, animColors:{from:"#FFFF99" , to:"#DDDDFF"} });
    }