Changed HTTP request newlines from \n to \r\n (RFC 2616).

Found this issue because Swift wouldn't respond to the HTTP requests with just *\n* as the newline character.

Discovered that the spec (RFC 2616) actually specifies *\r\n* as the right newline character set.  See:

http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2

Swift now replies accordingly.