Fixes some issues with the generator

- putting stuff in spec_helper that should be in rails_helper
- not requiring some gems when needed
- referencing spec_helper instead of rails_helper
- not including capybara (not sure why this isn't brought in by rspec_api_documentation)

lib/stitches/api_generator.rb

@@ -53,7 +53,8 @@ def bootstrap_api
 
       inject_into_file "Gemfile", after: /^group :test, :development do.*$/ do<<-GEM
 
-gem "rspec_api_documentation"
+  gem "rspec_api_documentation"
+  gem "capybara"
       GEM
       end
       run 'bundle install'
@@ -62,16 +63,17 @@ def bootstrap_api
       sleep 1 # allow clock to tick so we get different numbers
       migration_template "db/migrate/create_api_clients.rb", "db/migrate/create_api_clients.rb"
 
-      inject_into_file 'spec/spec_helper.rb', %q{
+      inject_into_file 'spec/rails_helper.rb', %q{
 config.include RSpec::Rails::RequestExampleGroup, type: :feature
 }, before: /^end/
 
-      inject_into_file 'spec/spec_helper.rb', before: /^RSpec.configure/ do<<-REQUIRE
+      inject_into_file 'spec/rails_helper.rb', before: /^RSpec.configure/ do<<-REQUIRE
 require 'stitches/spec'
       REQUIRE
       end
 
-      append_to_file 'spec/spec_helper.rb' do<<-RSPEC_API
+      append_to_file 'spec/rails_helper.rb' do<<-RSPEC_API
+require 'rspec_api_documentation'
 RspecApiDocumentation.configure do |config|
 config.format = :json
 config.request_headers_to_include = %w(
@@ -94,4 +96,4 @@ def bootstrap_api
 
     end
   end
-end
+end

lib/stitches/generator_files/spec/acceptance/ping_v1_spec.rb

@@ -1,4 +1,4 @@
-require 'spec_helper'
+require 'rails_helper'
 require 'rspec_api_documentation/dsl'
 
 resource "Ping (V1)" do

lib/stitches/generator_files/spec/features/api_spec.rb

@@ -1,4 +1,4 @@
-require 'spec_helper.rb'
+require 'rails_helper.rb'
 
 feature "general API stuff" do
   scenario "good request" do