Curl and libcurl 7.50.1

 Public curl releases:         157
 Command line options:         185
 curl_easy_setopt() options:   224
 Public functions in libcurl:  61
 Contributors:                 1418

This release includes the following bugfixes:

 o TLS: switch off SSL session id when client cert is used [7]
 o TLS: only reuse connections with the same client cert [8]
 o curl_multi_cleanup: clear connection pointer for easy handles [9]
 o include the CURLINFO_HTTP_VERSION(3) man page into the release tarball
 o include the http2-server.pl script in the release tarball
 o test558: fix test by stripping file paths from FD lines
 o spnego: Corrected miss-placed * in Curl_auth_spnego_cleanup() declaration
 o tests: Fix for http/2 feature [1]
 o cmake: Fix for schannel support [2]
 o curl.h: make public types void * again [3]
 o win32: fix a potential memory leak in Curl_load_library [4]
 o travis: fix OSX build by re-installing libtool [5]
 o mbedtls: Fix debug function name [6]

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:

  Alain Danteny, Bru Rom, Dan Fandrich, Daniel Stenberg, Eric Rescorla,
  Fernando Muñoz, Kamil Dudka, Marcelo Echeverria, Martin Vejnár,
  Patrick Monnerat, Paul Howarth, Peter Frühberger, Ray Satiro, Sergei Nikulov,
  Steve Holme, Thomas Glanzmann, Viktor Szakáts, Yonggang Luo,
  (18 contributors)

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

References to bug reports and discussions on issues:

 [1] = https://curl.haxx.se/mail/lib-2016-07/0070.html
 [2] = https://curl.haxx.se/bug/?i=917
 [3] = https://curl.haxx.se/bug/?i=926
 [4] = https://curl.haxx.se/bug/?i=938
 [5] = https://curl.haxx.se/bug/?i=939
 [6] = https://curl.haxx.se/mail/lib-2016-08/0001.html
 [7] = https://curl.haxx.se/docs/adv_20160803A.html
 [8] = https://curl.haxx.se/docs/adv_20160803B.html
 [9] = https://curl.haxx.se/docs/adv_20160803C.html
