Log Message:
Update to curl-7.42.0.

This release includes the following changes:

 o openssl: show the cipher selection to use in verbose text
 o gtls: implement CURLOPT_CERTINFO
 o add CURLOPT_SSL_FALSESTART option (darwinssl and NSS)
 o curl: add --false-start option
 o add CURLOPT_PATH_AS_IS
 o curl: add --path-as-is option
 o curl: create output file on successful download of an empty file

This release includes the following bugfixes:

 o ConnectionExists: for NTLM re-use, require credentials to match
 o cookie: cookie parser out of boundary memory access
 o fix_hostname: zero length host name caused -1 index offset
 o http_done: close Negotiate connections when done
 o sws: timeout idle CONNECT connections
 o nss: improve error handling in Curl_nss_random()
 o nss: do not skip Curl_nss_seed() if data is NULL
 o curl-config.in: eliminate double quotes around CURL_CA_BUNDLE
 o http2: move lots of verbose output to be debug-only
 o dist: add extern-scan.pl to the tarball
 o http2: return recv error on unexpected EOF
 o build: Use default RandomizedBaseAddress directive in VC9+ project files
 o build: Removed DataExecutionPrevention directive from VC9+ project files
 o tool: Updated the warnf() function to use the GlobalConfig structure
 o http2: Return error if stream was closed with other than NO_ERROR
 o mprintf.h: remove #ifdef CURLDEBUG
 o libtest: fixed linker errors on msvc
 o tool: use ENABLE_CURLX_PRINTF instead of _MPRINTF_REPLACE
 o curl.1: fix "The the" typo
 o cmake: handle build definitions CURLDEBUG/DEBUGBUILD
 o openssl: remove all uses of USE_SSLEAY
 o multi: fix memory-leak on timeout (regression)
 o curl_easy_setopt.3: added CURLOPT_SSL_VERIFYSTATUS
 o metalink: add some error checks
 o TLS: make it possible to enable ALPN/NPN without HTTP/2
 o http2: use CURL_HTTP_VERSION_* symbols instead of NPN_*
 o conncontrol: only log changes to the connection bit
 o multi: fix *getsock() with CONNECT
 o symbols.pl: handle '-' in the deprecated field
 o MacOSX-Framework: use @rpath instead of @executable_path
 o GnuTLS: add support for CURLOPT_CAPATH
 o GnuTLS: print negotiated TLS version and full cipher suite name
 o GnuTLS: don't print double newline after certificate dates
 o memanalyze.pl: handle free(NULL)
 o proxy: re-use proxy connections (regression)
 o mk-ca-bundle: Don't report SHA1 numbers with "-q"
 o http: always send Host: header as first header
 o openssl: sort ciphers to use based on strength
 o openssl: use colons properly in the ciphers list
 o http2: detect premature close without data transfered
 o hostip: Fix signal race in Curl_resolv_timeout
 o closesocket: call multi socket cb on close even with custom close
 o mksymbolsmanpage.pl: use std header and generate better nroff header
 o connect: Fix happy eyeballs logic for IPv4-only builds
 o curl_easy_perform.3: remove superfluous close brace from example
 o HTTP: don't use Expect: headers when on HTTP/2
 o Curl_sh_entry: remove unused 'timestamp'
 o docs/libcurl: makefile portability fix
 o mkhelp: Remove trailing carriage return from every line of input
 o nss: explicitly tell NSS to disable NPN/ALPN when libcurl disables it
 o curl_easy_setopt.3: added a few missing options
 o metalink: fix resource leak in OOM
 o axtls: version 1.5.2 now requires that config.h be manually included
 o HTTP: don't switch to HTTP/2 from 1.1 until we get the 101
 o cyassl: detect the library as renamed wolfssl
 o CURLOPT_HTTPHEADER.3: add a "SECURITY CONCERNS" section
 o CURLOPT_URL.3: Added "SECURITY CONCERNS
 o openssl: try to avoid accessing OCSP structs when possible
 o test938: added missing closing tags
 o testcurl: Allow '=' in values given on command line
 o tests/certs: added make target to rebuild certificates
 o tests/certs: rebuild certificates with modified key usage bits
 o gtls: avoid uninitialized variable
 o gtls: dereferencing NULL pointer
 o gtls: add check of return code
 o test1513: eliminated race condition in test run
 o dict: rename byte to avoid compiler shadowed declaration warning
 o curl_easy_recv/send: make them work with the multi interface
 o vtls: fix compile with --disable-crypto-auth but with SSL
 o openssl: adapt to ASN1/X509 things gone opaque in 1.1
 o openssl: verifystatus: only use the OCSP work-around <= 1.0.2a
 o curl_memory: make curl_memory.h the second-last header file loaded
 o testcurl.pl: add the --notes option to supply more info about a build
 o cyassl: If wolfSSL then identify as such in version string
 o cyassl: Check for invalid length parameter in Curl_cyassl_random
 o cyassl: default to highest possible TLS version
 o Curl_ssl_md5sum: return CURLcode (fixes OOM)
 o polarssl: remove dead code
 o polarssl: called mbedTLS in 1.3.10 and later
 o globbing: fix step parsing for character globbing ranges
 o globbing: fix url number calculation when using range with step
 o multi: on a request completion, check all CONNECT_PEND transfers
 o build: link curl to openssl libraries when openssl support is enabled
 o url: Don't accept CURLOPT_SSLVERSION unless USE_SSL is defined
 o vtls: Don't accept unknown CURLOPT_SSLVERSION values
 o build: Fix libcurl.sln erroneous mixed configurations
 o cyassl: remove undefined reference to CyaSSL_no_filesystem_verify
 o cyassl: add SSL context callback support for CyaSSL
 o tool: only set SSL options if SSL is enabled
 o multi: remove_handle: move pending connections
 o configure: Use KRB5CONFIG for krb5-config
 o axtls: add timeout within Curl_axtls_connect
 o CURLOPT_HTTP200ALIASES.3: Mainly SHOUTcast servers use "ICY 200"
 o cyassl: Fix library initialization return value
 o cookie: handle spaces after the name in Set-Cookie
 o http2: Fix missing nghttp2_session_send call in Curl_http2_switched
 o cyassl: Fix certificate load check
 o build-openssl.bat: Fix mixed line endings
 o checksrc.bat: Check lib\vtls source
 o DNS: fix refreshing of obsolete dns cache entries
 o CURLOPT_RESOLVE: actually implement removals
 o checksrc.bat: quotes to support an SRC_DIR with spaces
 o cyassl: Remove 'Connecting to' message from cyassl_connect_step2
 o cyassl: Use CYASSL_MAX_ERROR_SZ for error buffer size
 o lib/transfer.c: Remove factor of 8 from sleep time calculation
 o lib/makefile.m32: add missing libs to build libcurl.dll
 o build: Generate source prerequisites for Visual Studio in generate.bat
 o cyassl: Include the CyaSSL build config
 o firefox-db2pem: fix wildcard to find Firefox default profile
 o BUGS: refer to the github issue tracker now as primary
 o vtls_openssl: improve several certificate error messages
 o cyassl: Add support for TLS extension SNI
 o parsecfg: do not continue past a zero termination
 o configure --with-nss=PATH: query pkg-config if available
 o configure --with-nss: drop redundant if statement
 o cyassl: Fix include order
 o HTTP: fix PUT regression with Negotiate
 o curl_version_info.3: fixed the 'protocols' variable type