(maint) Begin Switch to Sinatra

Prior to this commit, my website used the ruby gem Rack for website
deployment which was a very static (bad) process. This commit switches
the website to use Sinatra, which is much more dynamic. Allows for
partial views, dynamic content...etc.
(heroku) Remove Gemfile, modify config.ru

Gemfile no longer needed. config.ru change for Sinatra and heroku.
Merge pull request #1 from briancain/maint/master/switch_to_sinatra

(maint) Begin Switch to Sinatra