V2.1.0

Hot reloading fix (4306894)

Some code should have been remove but wasn't, now it shouldn't
interfere with hot reloading components anymore

Add util function to clean up a HTML element before replacing it (bc8cb64)

Remove all instances bound to this html element or its children.
Finds all elements with a data-component attribute, and disposes and
removes the created component instance for that element.

You should call this function before removing/replacing any piece of
HTML that has components attached to it (e.g. when calling
initComponents on replaced HTML)