Remove Puppet 2.7 from travis matrix
Add testing on Ruby 1.8.7 with Puppet 3 to travis.yml
Pin puppet-lint to 0.3.2
Only call install_* methods once
Merge pull request #352 from mhaskel/spec_helper_updates

Only call install_* methods once
add support for LinuxMint operating system
Prefer `if/else` over `?` selector with `default`
Fix some Puppet Lint errors
Merge pull request #356 from digitalmediacenter/fix_puppet_lint_errors

Fix some Puppet Lint errors
Merge pull request #353 from Smartesting/add-support-for-linuxmint-operatingsystem

add support for LinuxMint operating system
Merge pull request #350 from cmurphy/master

Remove Puppet 2.7 from travis matrix