puppet-os-hardening 2.2.6

Implemented enhancements:

• Proxy support / SUSE fixes #217 (mcgege)
• Updates from pdk template 1.11.1 #215 (mcgege)
• Metadata / Travis fixes #211 (mcgege)
• CIS: Fix permissions on home cron and log dirs #203 (PenguinFreeDom)

Fixed bugs:

• Approve stdlib v6 + resolve librarian-puppet problem #213

Closed issues:

• Error: no implicit conversion of Integer into String #199

Merged pull requests:

• allow puppet-stdlib v6 #219 (mcgege)
• OpenSUSE 42.3 docker image correction #214 (mcgege)