spec_helper: implement an easy way for specs to confine to puppet version
spec_helper: implement an easy way for specs to confine to puppet version

Usage:

    describe 'puppet3 behaviour', :unless => RSpec.configuration.puppet_future do
    describe 'puppet4 behaviour', :if => RSpec.configuration.puppet_future do

HelenCampbell/puppetlabs-stdlib,jbondpdx/puppetlabs-stdlib,yadavnikhil/puppetlabs-stdlib,fuel-infra/puppetlabs-stdlib,DavidS/puppetlabs-stdlib,puppetlabs/puppetlabs-stdlib