Git commits in Moodle 3.2.0 by Vladimir Zhirov

commit acefc7d96321048c0d1f18191b54f649be8d8938
Author: Vladimir Zhirov <vvzh@users.noreply.github.com>
Date:   Sun, 27 Nov 2016 03:42:54 +0800
Tag:    v3.2.0-rc4

MDL-57163 installation: fixed "Call to undefined function curl_version"