[COOK-3462] Add ability to install packages during compile time

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Add Test Kitchen, ChefSpec, RuboCop, and Foodcritic on Travis CI

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Version bump to v1.2.0
Version bump to v1.2.1
Merge remote-tracking branch 'upstream/master' into limit_apt_updates