Update to papertrail's new ca bundle
Workaround wildcard certificate with PermittedPeer

Rsyslog doesn't support wildcard certificates, but a wildcard matches
the CN in the wildcard certificate, so this way we workaround it to be
able to support logs2.papertrailapp.com
Merge pull request #14 from otelic/master

Support new log destinations on logs2.papertrailapp.com