Bug 795354 - Puppet Part 1 - Migrate SeaMonkey Linux builders to CentOS 6. r=dustin

--HG--
rename : modules/puppetmaster/manifests/extsync/slavealloc.pp => modules/puppetmaster/manifests/extsync/fake_slavealloc.pp
rename : modules/runner/files/checkout_tools => modules/runner/templates/tasks/checkout_tools.erb
rename : modules/runner/files/purge_builds => modules/runner/templates/tasks/purge_builds.erb
rename : modules/runner/files/update_shared_repos => modules/runner/templates/tasks/update_shared_repos.erb