CVS diff for ChangeLog between 1.10 and 1.6:

    - pth_writev() is used to combine headers with body instead of issuing
      multiple pth_write()'s; this should be faster because it results in
      fewer internal copies of the data 

    - in order to minimize TCP packets, CoW uses a user-space buffering scheme
      derived from Apache's code
    - KeepAlive is implemented and actually works now

    - included copy of GNU Pth has experimental sys_epoll support now; in
      theory this should be a lot faster than the current select() code

    - added ability to limit response concurrency 

    - 503 responses are no longer sent unless --enable-503 is specified during

      configuration; this was never actually getting used and probably would
      have just wasted resources
    - HTTP PUT requests are disabled unless --enable-put is passed at
      configuration 
    - socket backlog can be set with a -b command line 
    - CoW properly 'half-closes' sockets now as required by HTTP/1.1
    - lots of code cleanup