Curl and libcurl 7.59.0

 Public curl releases:         173
 Command line options:         212
 curl_easy_setopt() options:   250
 Public functions in libcurl:  74
 Contributors:                 1685

This release includes the following changes:

 o curl: add --proxy-pinnedpubkey [10]
 o added: CURLOPT_TIMEVALUE_LARGE and CURLINFO_FILETIME_T [13]

This release includes the following bugfixes:

 o lib555: drop text conversion and encode data as ascii codes [1]
 o lib517: make variable static to avoid compiler warning
 o lib544: sync ascii code data with textual data [1]
 o GSKit: restore pinnedpubkey functionality [2]
 o darwinssl: Don't import client certificates into Keychain on macOS [3]
 o parsedate: fix date parsing for systems with 32 bit long [4]
 o openssl: fix pinned public key build error in FIPS mode [5]
 o SChannel/WinSSL: Implement public key pinning [6]
 o cookies: remove verbose "cookie size:" output
 o progress-bar: don't use stderr explicitly, use bar->out [7]
 o Fixes for MSDOS
 o build: open VC15 projects with VS 2017
 o curl_ctype: private is*() type macros and functions [8]
 o configure: set PATH_SEPARATOR to colon for PATH w/o separator [9]
 o winbuild: make linker generate proper PDB [11]
 o curl_easy_reset: clear digest auth state [12]
 o curl/curl.h: fix comment typo for CURLOPT_DNS_LOCAL_IP6 [14]

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:

  Adam Marcionek, Alessandro Ghedini, Dair Grant, Daniel Stenberg,
  Earnestly on github, Gisle Vanem, Marcel Raad, Michał Janiszewski,
  Patrick Monnerat, Ruurd Beerstra, Travis Burtrum,
  (11 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=1872
 [2] = https://curl.haxx.se/bug/?i=2263
 [3] = https://curl.haxx.se/bug/?i=2085
 [4] = https://curl.haxx.se/bug/?i=2250
 [5] = https://curl.haxx.se/bug/?i=2258
 [6] = https://curl.haxx.se/bug/?i=1429
 [7] = https://github.com/curl/curl/commit/993dd5651a6c853bfe3870f6a69c7b329fa4e8ce#commitcomment-27070080
 [8] = https://curl.haxx.se/bug/?i=2269
 [9] = https://curl.haxx.se/bug/?i=2202
 [10] = https://curl.haxx.se/bug/?i=2268
 [11] = https://curl.haxx.se/bug/?i=2274
 [12] = https://curl.haxx.se/mail/lib-2018-01/0074.html
 [13] = https://curl.haxx.se/bug/?i=2238
 [14] = https://curl.haxx.se/bug/?i=2275