Align postgis default version with postgres version
Align postgis default version with postgres version

As the values for the postgis version is hard-coded, this module currently installs by default older, unsupported versions of postgis.
This commit updates the module to align with current default postgis versions for each related postgres version.
npwalker/puppetlabs-postgresql,hasegeli/puppetlabs-postgresql,tdevelioglu/puppetlabs-postgresql,PierreR/puppetlabs-postgresql,covermymeds/puppetlabs-postgresql,puppetlabs/puppetlabs-postgresql,tdevelioglu/puppetlabs-postgresql,hasegeli/puppetlabs-postgresql,fuel-infra/puppetlabs-postgresql,npwalker/puppetlabs-postgresql,npwalker/puppetlabs-postgresql,tdevelioglu/puppetlabs-postgresql,buzzdeee/puppetlabs-postgresql,covermymeds/puppetlabs-postgresql,infoxchange/puppetlabs-postgresql,buzzdeee/puppetlabs-postgresql,puppetlabs/puppetlabs-postgresql,fuel-infra/puppetlabs-postgresql,PierreR/puppetlabs-postgresql,hasegeli/puppetlabs-postgresql,infoxchange/puppetlabs-postgresql,buzzdeee/puppetlabs-postgresql,covermymeds/puppetlabs-postgresql,infoxchange/puppetlabs-postgresql,puppetlabs/puppetlabs-postgresql,DavidS/puppetlabs-postgresql,DavidS/puppetlabs-postgresql,PierreR/puppetlabs-postgresql,duritong/puppetlabs-postgresql,fuel-infra/puppetlabs-postgresql,DavidS/puppetlabs-postgresql