Add augeasproviders_core setup to spec_helper.rb
Add augeasproviders_core setup to spec_helper.rb

Contains various spec helpers and a fix for Puppet's bad loading of the
augeasproviders_core dependency on some versions. Extracted from
puppet-puppetserver.

voxpupuli/modulesync_config,dhoppe/modulesync_config,dhoppe/modulesync_config,voxpupuli/modulesync_config,puppet-community/modulesync_config,voxpupuli/modulesync_config,dhoppe/modulesync_config,voxpupuli/modulesync_config,dhoppe/modulesync_config