Added a contact us page

Also added tests for this page, configured the routes, put in some string interpolation in the static_pages_spec.rb test, and of course created the contact.html.erb page that used the template application.html.erb with the substitution for the title.
Added Guardfile and Spork

downloaded necessary stuff for guard file and spork.  Have the guard file specififed to pre-load certain things so testing is faster.  Also have sublime text set up some how to run tests from the editor.  Pretty nice.  Not sure how I got it all to work.  Could spend weeks learning sublime text 2 it looks like.... might be worth it :).