Added more HTTP 1.0 response header elements

[mmaraya]

I reviewed http://www.rfc-base.org/txt/rfc-1945.txt and made the following changes:

• [x] Added Reason-Phrase ("OK", "Not Found") to the Status Line
• [x] Added Date

The current response header is:

HTTP/1.0 200
Server: Web++ 1.0.1
Content-Type: text/html
Content-Length: 5 

With this change, the response header will be:

HTTP/1.0 200 OK
Server: Web++ 1.0.1
Date: Tue, 31 Dec 2013 04:37:56 UTC
Content-Type: text/html
Content-Length: 5