Merge pull request #64 from ebanni/document

Changes invoice for documents & removes billing history
adds rack timeout gem
update site.js for production
fix Mandrill host address for production
fix datepicker
updates wording on Stripe invoices and from address
update date and number fields on invoice email
further alignment fixing of stripe invoice
adds card detail method to cope with null charges
update help intro
adds LinkedIn links
adds sitemap
adds newrelic.yml
upgrades to Ruby 2.1.2
removes trailing whitespace