NiceHash, Web output, etc..

NiceHash added thanks to @samut3. I even had some success using NiceHash's protocol for Ethminer.
Added console output at IP:WebSockPort/console -- more features are planned such as managing connections and viewing other stats from the web. Incidentally, this also includes a basic webserver. I haven't tested it much, but it should work for basic file serving. I also added a basic check for a directory traversal attack.
Allow a separate DevFee wallet from the default miner wallet.
Started implementing stats gathering of connected miners for eventual Web UI. You can export them with the X key, or view the info with the M key. This includes wallets that miners try to use, including DevFee wallets.