Refactors liferay zip to download to the cache

Uses Chef::Config[:file_cache_path] as the default location. This
is useful, for example, when utilizing vagrant-cachier to cache
the zip, greatly speeding up time to converge the node.
Adds rake to gemfile
Updates ruby versions to test on Travis
Executes foodcritic with bundler
Changes foodcritic to fail on correctness
Prevents foodcritic from failing the build
Merge pull request #16 from adamkrone/download-temp

Refactors liferay zip to download to the cache