Author: Ankit Agarwal
MDL-55777 installation: Check libcurl version on install
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f2330472f0963985deb34ca72ee2b33a6d4358b7
http://github.com/moodle/moodle/commit/f2330472f0963985deb34ca72ee2b33a6d4358b7
+ 3.2 en [libcurlwarning,core_admin]