Bump rspec-puppet to 2.1.0
Bump rspec-puppet to 2.1.0

rspec-puppet 2.1.0 includes Puppet 4.0 support [1].

[1] https://github.com/rodjek/rspec-puppet/commits/v2.1.0

Change-Id: I101785506c7f450c3a6146eee1e76ead28933e7a

egafford/puppet-tripleo,paramite/puppet-tripleo,rdo-puppet-modules/puppet-tripleo,paramite/puppet-tripleo,paramite/puppet-tripleo,rdo-puppet-modules/puppet-tripleo,egafford/puppet-tripleo,rdo-puppet-modules/puppet-tripleo,egafford/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo