curl for windows10 x64

curl for windows10 x64 , version Version 7.56.1 (23 Oct 2017) Daniel Stenberg (23 Oct 2017) - RELEASE-NOTES: 7.56.1 - THANKS: update at 7.56.1 release time - [Jon DeVree brought this change] mk-ca-bundle: Remove URL for aurora Aurora is no longer used by Mozilla https://hacks.mozilla.org/2017/04/simplifying-firefox-release-channels/ - [Jon DeVree brought this change] mk-ca-bundle: Fix URL for NSS The 'tip' is the most recent branch committed to, this should be 'default' like the URLs for the browser are. Closes #1998 - imap: if a FETCH response has no size, don't call write callback