Small debugging improvements

[jhiesey]

These were useful when I was doing some debugging and probably will help others too.

[KayleePop]

LGTM

I think that if (this.destroyed) return is a mistake because _debug() is actually called after this.destroyed is set to true in torrent._destroy() here

webtorrent/lib/torrent.js

Lines 666 to 672 in f01ca68

	Torrent.prototype._destroy = function (err, cb) {
	var self = this
	if (self.destroyed) return
	self.destroyed = true
	self._debug('destroy')
	self.client._remove(self)

[feross]

LGTM

[feross]

Released as 0.102.1

[jhiesey]

@KayleePop yup that's exactly the issue I hit