Tidy spec directory (#646)

spec/annotate/annotate_models_spec.rb → spec/lib/annotate/annotate_models_spec.rb

 # encoding: utf-8
-require File.dirname(__FILE__) + '/../spec_helper.rb'
+require_relative '../../spec_helper'
 require 'annotate/annotate_models'
 require 'annotate/active_record_patch'
 require 'active_support/core_ext/string'
@@ -1819,7 +1819,7 @@ end
         end
 
         expect(error_output).to include("Unable to annotate #{@model_dir}/user.rb: oops")
-        expect(error_output).to include('/spec/annotate/annotate_models_spec.rb:')
+        expect(error_output).to include('/spec/lib/annotate/annotate_models_spec.rb:')
       end
     end
 

spec/annotate/annotate_routes_spec.rb → spec/lib/annotate/annotate_routes_spec.rb

-require File.dirname(__FILE__) + '/../spec_helper.rb'
+require_relative '../../spec_helper'
 require 'annotate/annotate_routes'
 
 describe AnnotateRoutes do

spec/annotate/parser_spec.rb → spec/lib/annotate/parser_spec.rb

-require File.dirname(__FILE__) + '/../spec_helper.rb'
+require_relative '../../spec_helper'
 
 module Annotate # rubocop:disable Metrics/ModuleLength
   describe Parser do # rubocop:disable Metrics/BlockLength

spec/annotate_spec.rb → spec/lib/annotate_spec.rb

-require File.dirname(__FILE__) + '/spec_helper.rb'
+require_relative '../spec_helper'
 
 describe Annotate do
   it 'should have a version' do

spec/tasks/annotate_models_migrate_spec.rb → spec/lib/tasks/annotate_models_migrate_spec.rb

-require_relative '../spec_helper'
+require_relative '../../spec_helper'
 
 describe 'ActiveRecord migration rake task hooks' do
   before do