Remove unwanted element attributes by name

[HitkoDev]

Add an option to blacklist attributes by matching them against an array of values or regular expressions. Closes #322.

[mdreizin]

@kangax did you have any chance to review it?

I also have some cases when I ned to remove some attributes (for example data-test="xxx").

[CedarDCX]

Any idea when this feature might get released? It would be a great additional feature which would allow us to remove redundant data-react-* attributes from our markup.