Accessing a file with an absolute path in the root dir but with no
directory specified was not handled correctly. This fix comes with four
new test cases that verify it.

Bug: http://curl.haxx.se/mail/lib-2013-04/0142.html
Reported by: Sam Deane

This ought to speed up additional TLS handshakes, at least in theory.

Moved imap_is_bchar() be with the other utility based functions.

Moved imap_parse_url_path() and imap_parse_custom_request() to the end of the
file allowing all utility functions to be grouped together.

Moved imap_atom() and imap_sendf() to the end of the file allowing all
utility functions to be grouped together.

... in case runtests.pl is invoked with non-default -b option

Fixes a regression caused by 1e29d275.

Update sharing interface documentation to provide exhaustive list of
what it does and does not share.

Most notable the security advisory:
http://curl.haxx.se/docs/adv_20130412.html

... and make 1216 also verify it with a file input

These tests verify commit 3604fde3d3c9b0d, the fix for the "cookie
domain tailmatch" vulnerability. See
http://curl.haxx.se/docs/adv_20130412.html

Cookies set for 'example.com' could accidentaly also be sent by libcurl
to the 'bexample.com' (ie with a prefix to the first domain name).

This is a security vulnerabilty, CVE-2013-1944.

Bug: http://curl.haxx.se/docs/adv_20130412.html

The previously applied patch didnt work on Windows; we cant rely
on shell commands like 'echo' since they act diffently on each
platform and each shell.
In order to keep this script platform-independent the code must
only use pure Perl.

Test 1217 verifies commit e0fb2d86, and without that change this
test fails.

When doing PWD, there's a 257 response which apparently some servers
prefix with a comment before the path instead of after it as is
otherwise the norm.

Failing to parse this, several otherwise legitimate use cases break.

Bug: http://curl.haxx.se/mail/lib-2013-04/0113.html

The OpenSSL pipe wrote to the final CA bundle file, but the encoded PEM
output wrote to a temporary file.  Consequently, the OpenSSL output was
lost when the temp file was renamed to the final file at script finish
(overwriting the final file written earlier by openssl).
Patch posted to the list by Richard Michael (rmichael edgeofthenet org).

This test is an attempt to repeat the problem YAMADA Yasuharu reported
at http://curl.haxx.se/mail/lib-2013-04/0108.html

added "tcpkeepalive on Mac OS X"

I noticed that aria2's SecureTransport code disables insecure ciphers such
as NULL, anonymous, IDEA, and weak-key ciphers used by SSLv3 and later.
That's a good idea, and now we do the same thing in order to prevent curl
from accessing a "secure" site that only negotiates insecure ciphersuites.

MacOS X doesn't have TCP_KEEPIDLE/TCP_KEEPINTVL but only a single
TCP_KEEPALIVE (see
http://developer.apple.com/library/mac/#DOCUMENTATION/Darwin/Reference/ManPages/man4/tcp.4.html).
Here is a patch for CURLOPT_TCP_KEEPIDLE on OSX platforms.

1 - We don't use the results from the test and we never did. recvfrom()
is only used by the TFTP code and it has not caused any problems.

2 - the CURL_CHECK_FUNC_RECVFROM function is extremely slow

Previously it only compared credentials if the requested needle
connection wasn't using a proxy. This caused NTLM authentication
failures when using proxies as the authentication code wasn't send on
the connection where the challenge arrived.

Added test 1215 to verify: NTLM server authentication through a proxy
(This is a modified copy of test 67)

Since qsort implementations vary with regards to handling the order
of similiar elements, this change makes the internal sort function
more deterministic by comparing path length first, then domain length
and finally the cookie name. Spotted with testcase 62 on Windows.

This reverts commit e51b23c9.
As discussed on the mailinglist, this was not the correct approach.