rspec + categories.json + Gemfile update, ... still in progress
fix GET /api
-    describe 'GET /api/v1/categories' do
+    describe 'GET /v1/categories' do
http://localhost:9000/v1/categories/ works in the browser, rspec still not working
add goliath/test_helper and follow Goliath spec/integration/template_spec.rb example
rspec matcher quite ok but still not perfect
categories matcher with regex is working: categories.to_s.should =~ /Ruby Web Frameworks/