License in classes headers should be also changed to apache 2.0

[hfazai]

As I see that this component is re-released with Apache 2 license. which is really great!

This commit changes the licence of this component but classes headers like Autocomplete.java still with CVALv3.

Maybe classes headers should be also changed to apache 2.0

[TatuLund]

Maybe classes headers should be also changed to apache 2.0

Yes, they should. Thanks for pointing this out.

[jcgueriaud1]

Closed by #13