Update maestro, maestro_nodes modules to use yum repo

Version can now be just present/latest
Update librarian-puppet
Update maestrodev/rvm
Update archiva module

Archiva was starting in port 8080 because ARCHIVA_BASE was ignored in wrapper.conf
Fix archiva test
update maestro module
update maestro module
Update maestro_demo module
Change the image name build now that we are using yum repos
Update ssh plugin to 1.5
Update maestrodev/maestro
Use new raw.githubusercontent.com url
Match correctly the rpm version ie 5.2.2-1
Update git plugin to 1.4
Update maestrodev/maestro
Remove puppet-server dependency from rpm
bump Archiva module
Remove selenium test dependencies from agent
Remove token from gce-bundle

Use service accounts
Use maestro::agent params instead of maestro_nodes::agent