Color input does not update the element on page

@art i think the issue here is that

colorEl.spectrum('set', valueClr);

inside function setValue(val, opts = {}) of InputColor.js does not call the change event inside spectrum. looks like it needs to be separated out.

@artf i have been looking at this quite a bit and managed to get it working but the way i have done it seems a little hacky.

The issue i found was inside src\domain_abstract\ui\InputColor.js inside setValue(val, opts = {}).

the value opts.targetUpdate is undefined after the second loop.

I added these, just above the IF statement and changed the variable previousСolor so it can be accessed by all the functions.

model.set('value', valueClr);
colorEl.spectrum('set', valueClr);

if (opts.targetUpdate) {
      self.previousСolor = valueClr;
      this.noneColor = valueClr;
}

again this feels a little hacky im not sure if its the correct approach.

@sonnylloyd actually the real issue is here https://github.com/artf/grapesjs/blob/dev/src/domain_abstract/ui/Input.js#L24-L27

should be instead:

  handleChange(e) {
    e.stopPropagation();
    this.model.set('value', this.getInputEl().value);
    this.elementUpdated();
  },

I've already made this change in the latest RC, you can see it working here http://grapesjs.com/demo-no-jq.html