v6.4.0

• Fixes Issue #185
  • a startup issue was resolved for SplunkForwarder installations with an improved
    systemd unit file (fix below)
  • Adds Inspec tests to verify from SplunkForwarder starts (thanks, @jjm)
• Fixes Issue #187
  • the systemd unit file is now relegated to the splunk enable boot-start command to manage
• Adds Inspec tests and sets the verifier in Test Kitchen for some test suites; some are still in serverspec
• Render the user-seed.conf with a file resource rather than a template
• The default recipe no longer includes the disable recipe; to disable splunk, add recipe[chef-splunk::disabled] to a run list explicitly
• Disabling splunk will no longer uninstall Splunk Enterprise nor the Splunk Universal Forwarder
• Adds #SecretsHelper to aid with secrets rotation and maintaining idempotency for handling Splunk's hashed secret values
• Improved guards to prevent service[splunk] restart/start when it should be disabled.