Reattaching event handlers if some has changed

[zerkms]

I added the reattachment logic, so now if any handler changes - all are re-attached correspondingly.

It solves at least these 2 problems:

1. Development with hot module reloading was painful - the wrapper simply does not re-wire events if I has changed one
2. If someone implements a scenario when a handler is deliberately changed even in production, this component will not respect that change (which would lead to tricky-to-debug bugs)

[rkit]

Thanks! Today will be release.

[rkit]

I released a new version (0.5.2)