BUG FIXES:
- Fix soft-tab linting issues via Dougal Scott (GH-4)
- Fix version detection exec via William Hutson (GH-3)
IMPROVEMENTS:
- Upgrade to Packer 0.7.5.
- Removed support for Puppet 2.7.
- Added support for upgrading existing packer installation.
- Fixed broken tests.
- Default version of packer is 1.1.2.
- Update module for Puppet5.
- Replace params.pp pattern with in-module hiera data, requires hiera 5.
- Update module dependencies.