(SERVER-415) Update PUPPET_BUILD_VERSION
(SERVER-415) Update PUPPET_BUILD_VERSION

Without this patch the master branch of puppet-server runs acceptance
tests using an out of date version of the puppet-agent dependency.  This
is a problem because this out of date version decreases confidence that
the master branch of puppet-server is fully working with recent versions
of puppet-agent.

This patch addresses the problem by updating to build [dc53fa3][1], the
most recent build today, the day PUP-3997 and PUP-4056 have been merged
into puppet's master branch.

[1]: http://builds.puppetlabs.lan/puppet-agent/dc53fa36a1813454b9b55243a3f291dae122d614/

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