Updates release notes for Puppet Server 2.0.
Updates release notes for Puppet Server 2.0.

This commit provides release notes for Puppet Server 2.0. Since the docs
toolchain is tracking the master branch for 2.0, and the stable branch
for 1.x, I just went ahead and replaced the 1.x release notes
altogether: They'll still be available in the /1/ version on
docs.puppetlabs.com.

jeffmccune/puppet-server,waynr/puppetserver,shrug/puppet-server,waynr/puppet-server,cprice404/puppet-server,puppetlabs/puppet-server,shrug/puppet-server,stahnma/puppet-server,briancain/puppet-server,stahnma/puppet-server,erikPrime/puppet-server,briancain/puppet-server,puppetlabs/puppetserver,kylog/puppet-server,er0ck/puppetserver,camlow325/puppetserver,puppetlabs/puppet-server,camlow325/puppet-server,waynr/puppet-server,puppetlabs/puppet-server,waynr/puppetserver,fpringvaldsen/puppet-server,puppetlabs/puppetserver,cgvarela/puppet-server,rlinehan/puppet-server,cgvarela/puppet-server,dankreek/puppet-server,ahpook/puppet-server,fpringvaldsen/puppet-server,waynr/puppet-server,puppetlabs/puppetserver,erikPrime/puppetserver,cprice404/puppetserver,rlinehan/puppetserver,jeffmccune/puppet-server,rlinehan/puppet-server,camlow325/puppetserver,kylog/puppet-server,rlinehan/puppetserver,briancain/puppet-server,dankreek/puppet-server,er0ck/puppetserver,camlow325/puppet-server,erikPrime/puppet-server,camlow325/puppetserver,camlow325/puppetserver,puppetlabs/puppetserver,erikPrime/puppetserver,erikPrime/puppetserver,cgvarela/puppet-server,waynr/puppetserver,ahpook/puppet-server,stahnma/puppet-server,cprice404/puppet-server,er0ck/puppetserver,camlow325/puppet-server,rlinehan/puppetserver,cprice404/puppetserver,erikPrime/puppet-server,er0ck/puppetserver,rlinehan/puppetserver,shrug/puppet-server,dankreek/puppet-server,cprice404/puppet-server,cprice404/puppetserver,ahpook/puppet-server,fpringvaldsen/puppet-server,shrug/puppet-server,jeffmccune/puppet-server,kylog/puppet-server,rlinehan/puppet-server