Need to pass leading option and others to debounce

[ghost]

I need to be notified when a change starts. So, I'd like to pass {leading: true} to the call to debounce on line 26 of Component.js.

The reason that I need this is that I use the existence of a value to toggle my floating labels.

I tried it out with my local project in node_modules/react-debounce-input and it works great:

    var debouncedChangeFunc = (0, _lodash2.default)(function (event) {
      _this.isDebouncing = false;
      _this.doNotify(event);
    }, debounceTimeout, {leading:true});

Also, I think that the maxWait option for lodash debounce will be useful for very fast typists.

[ghost]

To be clear, in my leading example above - I want to get a change event when they start typing and then when they finish - and that is exactly what happens when I pass {leading:true}, as long as I type really fast. If I pause while I'm typing, I also get a change event which is fine.

[ghost]

@nkbt I am comfortable making this change myself and I will have to soon enough anyway because all of my forms depend on it now.

However, if within the next few days you indicate that you would prefer to make this change yourself then I will abstain from forking and making a pull request.

Thanks for your work!