Send tracker correct Event instead of defaulting to Started #174
Description
As it stands, the only event we use is the Started event (or 1 in the tracker protocol), which, according to the spec, should only be sent when "when a download first begins". The intended behavior is we send a Started event as our first announce request, and send Empty events for our basic interval announces. This flow is being broken because we essentially just spam Started instead of doing anything actually reasonable.