(TK-472) Bump tk-webserver-jetty9 to 2.2.0
(TK-472) Bump tk-webserver-jetty9 to 2.2.0

This release contains the bump to jetty9 version 9.4.11.v20180605 which
has the fix for CVE-2017-7656

puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb