Simplify gems and rsync with voxpup

It seems that the voxpupli-gem now pulls in the deps so we do not have have to specify so much.

Basically lifted form

https://github.com/voxpupuli/modulesync_config/blob/master/config_defaults.yml

There are some new lint checks here enabled:

• puppet-lint-absolute_classname-check - include ::foobar will now fail. https://github.com/voxpupuli/puppet-lint-absolute_classname-check
• puppet-lint-topscope-variable-check - $::foo::bar will start to fail. https://github.com/sixt/puppet-lint-topscope-variable-check
• puppet-lint-legacy_facts-check $operatingsystem will start to fail. https://github.com/mmckinst/puppet-lint-legacy_facts-check
• puppet-lint-anchor-check all the 'anchor' type constructs will start to fail https://github.com/voxpupuli/puppet-lint-anchor-check