cole

Results 2 issues of cole

Resolve some inconsistency: - move `StartCommercial` (`channels/commercial`) from `Ads.cs` to `Channels.cs` - remove `Ads.cs`

_From @niklr on April 12, 2018 10:1_ Is it currently possible to cancel a pending async method? What happens if Twitch is down: will the sync/async methods run forever or...