Template compatibility Puppet 3.2

Puppet 3.2 complains when using local variables instead of instance
variables when passing data from Puppet to ERB.
Implement test to demonstrate failure
Allow cs_primitive to function when utilization is not provided
Implement tests for flush
Merge pull request #53 from bitglue/3676_utilization_required

don't complain if cs_primitive doesn't have a utilization parameter
Merge pull request #48 from kbon/Puppet-3.2-template-compatibility

Template compatibility Puppet 3.2