loadbalancer: Terminate SSL in the HAProxy loadbalancer.

This commit allows deployer to define if they want (per API) the SSL
to be terminated in the HAProxy or not.
Pin last commit for puppetlabs-haproxy

Tests are broken since we need the last commit to support "bind_options"
parameter support in our manifests.

Also delete the useless bind_options for MySQL Galera.

Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>