FILE: Fixed sending of data would always return CURLE_WRITE_ERROR

Introduced in commit 2a4ee0d2215556 sending of data via the FILE
protocol would always return CURLE_WRITE_ERROR regardless of whether
CURL_WRITEFUNC_PAUSE was returned from the callback function or not.
sendf.c: Fixed compilation warning from f2d234a4dd9bcc

sendf.c:450:81: warning: Longer than 79 columns
ftpserver.pl: Reworked SMTP verified server detection

Following the addition of informational commands to the SMTP protocol,
the test server is no longer required to return the verified server
information in responses that curl only outputs in verbose mode.

Instead, a similar detection mechanism to that used by FTP, IMAP and
POP3 can now be used.
ftpserver.pl: Fixed compilation error

Unmatched right curly bracket at line 758, at end of line
runtests.pl: Added the ability to run tests when a feature is not present
runtests.pl: Optimised feature present checking code

...to exclude not present features.
connect: Try all addresses in first connection attempt

Fixes a bug when all addresses in the first family fail immediately, due
to "Network unreachable" for example, curl would hang and never try the
next address family.

Iterate through all address families when to trying establish the first
connection attempt.

Bug: http://curl.haxx.se/bug/view.cgi?id=1315
Reported-by: Michal Górny and Anthony G. Basile
runtests.pl: Fixed slightly incorrect regex in commit 28dd47d4d41900
connect.c: Fixed compilation warning

warning: 'res' may be used uninitialized in this function
tests: Disabled NTLM tests when running with SSPI enabled
curl_easy_setopt.3: Added SMTP information to CURLOPT_INFILESIZE_LARGE

Although added to CURLOPT_INFILESIZE in commit ee3d3adc6fe155 it was
never added to CURLOPT_INFILESIZE_LARGE.
mprintf: Added support for I, I32 and I64 size specifiers

Added support to the built-in printf() replacement functions, for these
non-ANSI extensions when compiling under Visual Studio, Borland, Watcom
and MinGW.

This fixes problems when generating libcurl source code that contains
curl_off_t variables.