Made the ftp server use the passed in pidfile name, and made runtests.pl
pass it in properly.

--trace, --trace-ascii and --verbose output. I also made the '>' display
separate each line on the linefeed so that HTTP requests etc look nicer in the
-v output.

a pidfile for the server appears as otherwise it failed.

this happens for some ipv6-enabled hosts on which sockfilt cannot listen
on ipv6.

pointing out the CA cert path/file: SSL_CERT_DIR and SSL_CERT_FILE. If
CURL_CA_BUNDLE is not set, they are checked afterwards.

and sockfilt.c. For good-to-have functions for the servers written in C.

body there is nothing chunked-encoded!

we should make it do that...)

the runtests.pl to check this differently on operating systems that
differentiate on this.

quotes around the contents

and fixed the textmode attribute thing for windows a bit

killslaves function

sometimes the server can start but curl cannot speak to it, and then we must
remember the server (in order to kill it properly) anyway.

Also, make sure to kill all servers on exit everywhere.

(problem identified by Dan F)
2. initial text mode fix for file checks, to allow better text file testing
on windows (with regard to line endings)
3. fixed to use the proper ftpserver pidfile to find pid

more places. First, CURL_HOME is a new environment variable that is used
instead of HOME if it is set, to point out where the default config file
lives. If there's no config file in the dir pointed out by one of the
environment variables, the Windows version will instead check the same
directory the executable curl is located in.