curl.h header and then check for the size of the curl_off_t type.

HttpPost is not defined anymore

in the failure frequency

The initial QUIT-sending code is added, but not yet used due to the issues
previously mentioned on the mailing list.

2002, and if this causes anyone any problems now it is very easy to just
add CURL_ to the names. This corrects this name space pollution.

arguments in a config file without a required parameter!

response with a size 5 instead of size 0, to see if this has an impact on
the failure frequency - test 91 still fails occationally.