... prior to calling PK11_GenerateRandom()

With everything being struct SessionHandle pointers now, this rename
makes multi.c use the library-wide practise of calling that pointer
'data' instead of the previously used 'easy'.

Moved Curl_easy_addmulti() from easy.c to multi.c, renamed it to
easy_addmulti and made it static.

Removed Curl_easy_initHandleData() and uses of it since it was emptied
in commit cdda92ab67b47d74a.

All protocol handler structs are now opaque (void *) in the
SessionHandle struct and moved in the request-specific sub-struct
'SingleRequest'. The intension is to keep the protocol specific
knowledge in their own dedicated source files [protocol].c etc.

There's some "leakage" where this policy is violated, to be addressed at
a later point in time.

1 - always allocate the struct in protocol->setup_connection. Some
protocol handlers had to get this function added.

2 - always free at the end of a request. This is also an attempt to keep
less memory in the handle after it is completed.

Start working on the next version and up some counters.

It shows intermittent failures and I haven't been able to track them
down yet. Disable this test for now.

The take down of the global dns cache didn't take CURLOPT_RESOLVE names
into account.

CURLOPT_DNS_USE_GLOBAL_CACHE broke in commit c4312741 (been
broken since the libcurl 7.29.0 release). While this option has been
documented as deprecated for almost a decade and nobody even reported
this bug, it should remain functional.

Added test case 1512 to verify

VMS modified files either missing from a previous commit and changes
to remove references to CVS repositories.

The previous naming scheme ftp_state_post_XXXX() wasn't really helpful
as it wasn't always immediately after 'xxxx' and it wasn't easy to
understand what it does based on such a name.

This new one is instead ftp_state_yyyy() where yyyy describes what it
does or sends.

Since the mk-ca-bundle tool itself isn't installed with make install,
there's no point in installing its documentation.

Bug: http://curl.haxx.se/mail/lib-2013-08/0057.html
Reported-by: Guenter Knauf

These are the files needed to build VMS distribution packages known as
PCSI kits.

Also minor update to the existing files, mainly to the documentation and
file clean up code.

This is the first version of this new document, detailing the seven
perhaps most important internal structs in libcurl source code:

  1.1 SessionHandle
  1.2 connectdata
  1.3 Curl_multi
  1.4 Curl_handler
  1.5 conncache
  1.6 Curl_share
  1.7 CookieInfo

This is a regression as this logic used to work. It isn't clear when it
broke, but I'm assuming in 7.28.0 when we went all-multi internally.

This likely never worked with the multi interface. As the failed
connection is detected once the multi state has reached DO_MORE, the
Curl_do_more() function was now expanded somewhat so that the
ftp_do_more() function can request to go "back" to the previous state
when it makes another attempt - using PASV.

Added test case 1233 to verify this fix. It has the little issue that it
assumes no service is listening/accepting connections on port 1...

Reported-by: byte_bucket in the #curl IRC channel

For some reason, OS X 10.5's GCC suddenly stopped working correctly with
macros that change MD5_Init etc. in the code to CC_MD5_Init etc., so I
worked around this by removing use of the macros and inserting static
functions that just call CommonCrypto's implementations of the functions
instead.

This changes the previous check for untrusted certs to a check for
certs explicitely marked as trusted.
The change is backward-compatible (tested with certdata.txt v1.80).

Use XC_CHECK_BUILD_FLAGS instead XC_CHECK_USER_FLAGS.

This reverts commit 6b27703b.

The internal function that's used to detect known file extensions for
the default Content-Type got the the wrong pointer passed in when
CURLFORM_BUFFER + CURLFORM_BUFFERPTR were used. This had the effect that
strlen() would be used which could lead to an out-of-bounds read (and
thus segfault). In most cases it would only lead to it not finding or
using the correct default content-type.

It also showed that test 554 and test 587 were testing for the
previous/wrong behavior and now they're updated as well.

Bug: http://curl.haxx.se/bug/view.cgi?id=1262
Reported-by: Konstantin Isakov

Christian Heimes brought to our attention that the certdata.txt
format has recently changed [1], causing ca-bundle.crt created
with mk-ca-bundle.[pl|vbs] to include untrusted certs.

[1] http://lists.debian.org/debian-release/2012/11/msg00411.html

Instead of claiming it is an error, we call it a "note" to reduce the
severity level. But the following text now says the [variable] "*should*
only be used to specify"... instead of previously having said "may".

Not needed

Since the merge of SessionHandle with Curl_one_easy, this indirection
isn't used anymore.