Missing Unsubscribe(channelId)

[perkio]

Would be great if you could expose a way to Unsubscribe a channel entirely, I know there's no API for it after serialization occurs but at least add a way to remove all subscription entries from storage so received notifications from that point onward would be discarded.

[andrewleader]

Hey @perkio, could you email me at aleader (at) microsoft.com? We're curious how you're using this library and would love to talk! And we definitely could consider an unsubscribe API (although as you said there's no WNS API to close a channel)