curl: update to 7.61.1.

This release includes the following bugfixes:

o security advisory (CVE-2018-14618): NTLM password overflow via integer overflow [73]
o CURLINFO_SIZE_UPLOAD: fix missing counter update [46]
o CURLOPT_ACCEPT_ENCODING.3: list them comma-separated
o CURLOPT_SSL_CTX_FUNCTION.3: might cause accidental connection reuse [72]
o Curl_getoff_all_pipelines: improved for multiplexed [3]
o DEPRECATE: remove release date from 7.62.0
o HTTP: Don't attempt to needlessly decompress redirect body [30]
o INTERNALS: require GnuTLS >= 2.11.3 [62]
o README.md: add LGTM.com code quality grade for C/C++ [42]
o SSLCERTS: improve the openssl command line
o Silence GCC 8 cast-function-type warnings [47]
o ares: check for NULL in completed-callback [3]
o asyn-thread: Remove unused macro [40]
o auth: only pick CURLAUTH_BEARER if we *have* a Bearer token [15]
o auth: pick Bearer authentication whenever a token is available [15]
o cmake: CMake config files are defining CURL_STATICLIB for static builds [54]
o cmake: Respect BUILD_SHARED_LIBS [35]
o cmake: Update scripts to use consistent style [9]
o cmake: bumped minimum version to 3.4 [34]
o cmake: link curl to the OpenSSL targets instead of lib absolute paths [34]
o configure: conditionally enable pedantic-errors [64]
o configure: fix for -lpthread detection with OpenSSL and pkg-config [38]
o conn: remove the boolean 'inuse' field [3]
o content_encoding: accept up to 4 unknown trailer bytes after raw deflate data [5]
o cookie tests: treat files as text
o cookies: support creation-time attribute for cookies [75]
o curl: Fix segfault when -H @headerfile is empty [23]
o curl: add http code 408 to transient list for --retry [78]
o curl: fix time-of-check, time-of-use race in dir creation [71]
o curl: use Content-Disposition before the "URL end" for -OJ [29]
o curl: warn the user if a given file name looks like an option [56]
o curl_threads: silence bad-function-cast warning [69]
o darwinssl: add support for ALPN negotiation [7]
o docs/CURLOPT_URL: fix indentation [20]
o docs/CURLOPT_WRITEFUNCTION: size is always 1 [19]
o docs/SECURITY-PROCESS: mention bounty, drop pre-notify
o docs/examples: add hiperfifo example using linux epoll/timerfd [21]
o docs: add disallow-username-in-url.d and haproxy-protocol.d to dist [50]
o docs: clarify NO_PROXY env variable functionality [70]
o docs: improved the manual pages of some callbacks [48]
o docs: mention NULL is fine input to several functions [43]
o formdata: Remove unused macro HTTPPOST_CONTENTTYPE_DEFAULT [40]
o gopher: Do not translate `?' to `%09' [67]
o header output: switch off all styles, not just unbold [8]
o hostip: fix unused variable warning
o http2: Use correct format identifier for stream_id [77]
o http2: abort the send_callback if not setup yet [63]
o http2: avoid set_stream_user_data() before stream is assigned [61]
o http2: check nghttp2_session_set_stream_user_data return code [55]
o http2: clear the drain counter in Curl_http2_done [27]
o http2: make sure to send after RST_STREAM [58]
o http2: separate easy handle from connections better [12]
o http: fix for tiny "HTTP/0.9" response [51]
o http_proxy: Remove unused macro SELECT_TIMEOUT [40]
o lib/Makefile: only do symbol hiding if told to [32]
o lib1502: fix memory leak in torture test [44]
o lib1522: fix curl_easy_setopt argument type
o libcurl-thread.3: expand somewhat on the NO_SIGNAL motivation [66]
o mime: check Curl_rand_hex's return code [22]
o multi: always do the COMPLETED procedure/state [3]
o openssl: assume engine support in 1.0.0 or later [2]
o openssl: fix debug messages [39]
o projects: Improve Windows perl detection in batch scripts [49]
o retry: return error if rewind was necessary but didn't happen [28]
o reuse_conn(): memory leak - free old_conn->options [17]
o schannel: client certificate store opening fix [68]
o schannel: enable CALG_TLS1PRF for w32api >= 5.1
o schannel: fix MinGW compile break [1]
o sftp: don't send post-qoute sequence when retrying a connection [79]
o smb: fix memory leak on early failure [26]
o smb: fix memory-leak in URL parse error path [4]
o smb_getsock: always wait for write socket too [11]
o ssh-libssh: fix infinite connect loop on invalid private key [53]
o ssh-libssh: reduce excessive verbose output about pubkey auth [53]
o ssh-libssh: use FALLTHROUGH to silence gcc8 [76]
o ssl: set engine implicitly when a PKCS#11 URI is provided [36]
o sws: handle EINTR when calling select() [24]
o system_win32: fix version checking [16]
o telnet: Remove unused macros TELOPTS and TELCMDS [40]
o test1143: disable MSYS2's POSIX path conversion [10]
o test1148: disable if decimal separator is not point [65]
o test1307: (fnmatch testing) disabled [31]
o test1422: add required file feature [6]
o test1531: Add timeout [41]
o test1540: Remove unused macro TEST_HANG_TIMEOUT [40]
o test214: disable MSYS2's POSIX path conversion for URL
o test320: treat curl320.out file as binary [14]
o tests/http_pipe.py: Use /usr/bin/env to find python
o tests: Don't use Windows path %PWD for SSH tests [74]
o tests: fixes for Windows line endlings [13]
o tool_operate: Fix setting proxy TLS 1.3 ciphers
o travis: build darwinssl on macos 10.12 to fix linker errors [33]
o travis: execute "set -eo pipefail" for coverage build [45]
o travis: run a 'make checksrc' too [25]
o travis: update to GCC-8 [52]
o travis: verify that man pages can be regenerated [50]
o upload: allocate upload buffer on-demand [60]
o upload: change default UPLOAD_BUFSIZE to 64KB [60]
o urldata: remove unused pipe_broke struct field [57]
o vtls: reinstantiate engine on duplicated handles [59]
o windows: implement send buffer tuning [37]
o wolfSSL/CyaSSL: Fix memory leak in Curl_cyassl_random [18]

(wiz)