Provide a way to cancel scheduled debounces

[jamestalmage]

I think the wrapped function should have a clear method attached to clear any scheduled debounce:

var debounced = debounce(fn, 300);

debounced();
debounced();
debounced.clear();

[nathanbuchar]

This was fixed in #10, but still hasn't been pushed to npm :( I need this feature as well, but I don't want the overhead of loadash or underscore.

[nathanbuchar]

For the record, I'm still waiting for this to be published to npm. :\

[sindresorhus]

This was added in 1.0.1.