(maint) Fix travis CI issues with Puppet 4 deprecation warnings
(maint) Fix travis CI issues with Puppet 4 deprecation warnings

bmcbm/garethr-docker,garethr/garethr-docker,SUNET/garethr-docker,SUNET/garethr-docker,garethr/garethr-docker,garethr/garethr-docker,HackerHappyHour/hackerhappyhour-docker,HackerHappyHour/hackerhappyhour-docker,HackerHappyHour/hackerhappyhour-docker,Tradeshift/garethr-docker,bmcbm/garethr-docker,SUNET/garethr-docker,bmcbm/garethr-docker,Tradeshift/garethr-docker,Tradeshift/garethr-docker