chore(package): update bittorrent-swarm to version 8.0.0

http://greenkeeper.io/
webtorrent · greenkeeperio-bot · Mar 29, 2016 · Mar 29, 2016 · bb94bfc4a781aab99737b662bd29e9281c29260f
commit bb94bfc4a781aab99737b662bd29e9281c29260f
diff --git a/package.json b/package.json
@@ -28,7 +28,7 @@
     "addr-to-ip-port": "^1.0.1",
     "bitfield": "^1.0.2",
     "bittorrent-dht": "^7.0.0",
-    "bittorrent-swarm": "^7.1.0",
+    "bittorrent-swarm": "^8.0.0",
     "chunk-store-stream": "^2.0.0",
     "cpus": "^1.0.0",
     "create-torrent": "^3.4.0",