Fix/Cleanup: Answer SOURCE/PUT requests with a real 200-OK.
We have answered SOURCE/PUT requests with a simple "HTTP/1.0 200 OK\r\n\r\n" while we should answer with complet headers. This commit corrects this. Interoperability: This will work for two classes of clients: * Super dumb ones not checking the response and will just send data and hope the socket is still open. * Those with a real parser. * Shoutcast clients (indepnded code path). * All libshout, curl, wget, ... based clients. This *could* break: * Clients that check for the exact returned message. However as we start with the same string this should work. Only client that check for the string including the End-of-header CRLF sequense may break. Please test careful before release.