Update to rspec 3 and stop overlaying multiple copies of config files into the app directory

I attempted to standardize the syntax a bit based on rubocop's default settings.  I also update the specs to RSpec 3 syntax and tried to be more consistent about what we do for verbose logging.

Finally I fixed an issue where we were copying multiple version of the jetpack config files into the final webapp directory.  You can see thes changes in the last commit for the PR

@xaviershay @tamird