Provide default capture value

[necolas]

Although capture is optional in more recent browser versions, this wasn't always the case (like Firefox 6), so to be safe you should default capture to false.

event/index.js

Line 15 in 9bd0291

el.addEventListener(type, fn, capture);

event/index.js

Line 35 in 9bd0291

el.removeEventListener(type, fn, capture);