(PDB-2707) Prepare release-notes for PuppetDB 4.1 release
(PDB-2707) Prepare release-notes for PuppetDB 4.1 release

puppetlabs/puppetdb,senior/puppetdb,mullr/puppetdb,rbrw/puppetdb,waynr/puppetdb,kbarber/puppetdb,waynr/puppetdb,senior/puppetdb,mullr/puppetdb,rbrw/puppetdb,mullr/puppetdb,waynr/puppetdb,rbrw/puppetdb,senior/puppetdb,puppetlabs/puppetdb,kbarber/puppetdb,mullr/puppetdb,mullr/puppetdb,kbarber/puppetdb,senior/puppetdb,kbarber/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,waynr/puppetdb,puppetlabs/puppetdb