Curl and libcurl 7.47.2

 Public curl releases:         153
 Command line options:         179
 curl_easy_setopt() options:   221
 Public functions in libcurl:  61
 Contributors:                 1348

This release includes the following changes:

 o configure: --with-ca-fallback: use built-in TLS CA fallback [2]

This release includes the following bugfixes:

 o Proxy-Connection: stop sending this header by default [1]
 o os400: sync ILE/RPG definitions with latest public header files
 o cookies: allow spaces in cookie names, cut of trailing spaces [3]
 o tool_urlglob: Allow reserved dos device names (Windows) [4]
 o openssl: remove most BoringSSL #ifdefs [5]
 o tool_doswin: Support for literal path prefix \\?\
 o mbedtls: fix ALPN usage segfault [6]
 o mbedtls: fix memory leak when destroying SSL connection data [7]

This release includes the following known bugs:

 o see docs/KNOWN_BUGS (https://curl.haxx.se/docs/knownbugs.html)

This release would not have looked like this without help, code, reports and
advice from friends like these:

  Brad Fitzpatrick, Daniel Stenberg, David Benjamin, Gisle Vanem,
  Ludwig Nussel, Patrick Monnerat, Rafael Antonio, Ray Satiro, Timotej Lazar,
  (9 contributors)

        Thanks! (and sorry if I forgot to mention someone)

References to bug reports and discussions on issues:

 [1] = https://curl.haxx.se/bug/?i=633
 [2] = https://curl.haxx.se/bug/?i=569
 [3] = https://curl.haxx.se/bug/?i=639
 [4] = https://github.com/curl/curl/commit/4520534#commitcomment-15954863
 [5] = https://curl.haxx.se/bug/?i=640
 [6] = https://curl.haxx.se/bug/?i=642
 [7] = https://curl.haxx.se/bug/?i=626
