Don't try to spam boostrap nodes, if we've tried enough nodes and none of them worked, chances are our connection is just a little slow, so wait some more before trying even more nodes or we might never see the end of it. May help with #221
Or at least, make the memory corruption so hard to reproduce that I wasn't able to run into it even after trying really hard.
Fixes #1 Fixes bad translation of the DHT nodes' ports to big endian
