Fix #1842 Net::HTTP#enable_post_connection_check doesn't work anymore
The setting enable_post_connection_check doesn't exist on very many
versions of ruby, and on those systems there's no way to disable domain
name checking on HTTPS.
The recommended work-around is to replace certificates when they have
incorrect hostnames.
Signed-off-by: Jesse Wolfe <jes5199@gmail.com>