add conditional around jetty:stop
update config/deploy.rb

add check to see if current_path directory exists before stopping jetty.
improve conditional jetty:stop message
update gems

Update figs gem from 2.0.1 to 2.0.2
Update git  gem from 1.2.7 to 1.2.8
Update newrelic_rpm from 3.9.0.229 to 3.9.3.241
update nyulibraries-deploy gem

Ran ```bundle update nyulibraries-deploy```, which updated Gemfile.lock
disable New Relic deployment option

Disable New Relic deployment by setting new_relic_environments to nil in deploy.rb
Merge pull request #70 from NYULibraries/chore/tweak-deploy-for-production

Update for production deployment.