Adds a Gemfile for tiny_http and webmock
wip
wip
Adding Nokogiri to the Gemfile
Adds an XMLParser for the XML API.
Added XML parsing with 4 times.  Fixed tiny_http ruby 2.0 URI bug
Prediction timer now calls xml
Fourth train prediction now called
Stop ID Bugfix for improper XML parsing to STOPS constant
Call PredictionFetcher#xml to get xml.

The method used to be called `times`, but that doesn't really make
much sense. So we're calling it xml now.
DRY up Driver#call

We iterate over the list of n times that we receive.
Terminal UI displays messages as well.
Merge pull request #1 from supertopher/chris/xml_api

Chris/xml api