Support running tests against Puppet Enterprise

This removes FOSS specific pathing in the ntp_parameters_specs and
removes the basic_spec entirely (both contained FOSS specific paths but
the basic test seemed more like a sanity check on the testing tools)
Merge pull request #125 from justinstoller/maint/3.0.x/dont_assume_foss

Support running tests against Puppet Enterprise
Workaround for stdlib 3.2 in PE3.x.

Switch from dirname() to an inline_template that calls File.dirname
directly.
Merge pull request #126 from apenney/stdlib

Workaround for stdlib 3.2 in PE3.x.
Add PE support.
Merge branch '3.0.x' of https://github.com/puppetlabs/puppetlabs-ntp into 3.0.x
Remove unnecessary apostrophes in template

Removes unnecessary apostrophes in template file introduced in 52ff81b7d0debb91f0aa86c5933aa90d5008ded5
Merge pull request #129 from kristofferhagen/fix-template

Remove unnecessary apostrophes in template
Rework the requestkey's test to pass on SLES.
Merge pull request #130 from apenney/fix-requestkey

Rework the requestkey's test to pass on SLES.
Rework the requestkey's test to pass on SLES.
Merge branch '3.0.x'
Revert "Workaround for stdlib 3.2 in PE3.x."

This reverts commit 7472dfe677b399e187896f9a99c0ba4f508b46ea.