Processing: OPC (re)connection in separate thread

When using multiple OPC connections, prevents disconnected server(s)
from stalling the client.
Processing: init host/port before thread
Config packets to 'pending' stream to avoid race
Merge pull request #42 from PaintYourDragon/master

Processing: OPC (re)connection in separate thread
Merge branch 'master' of https://github.com/scanlime/fadecandy