Small refactoring and rewording

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/projects/_builds_settings.html.haml

@@ -5,7 +5,7 @@
   - unless @repository.gitlab_ci_yml
     .form-group
       .col-sm-offset-2.col-sm-10
-        %p Before you can use Builds (Continuous Integration) feature you need to setup it.
+        %p Builds need to be configured before you can begin using Continuous Integration.
         = link_to 'Get started with Builds', help_page_path('ci/quick_start', 'README'), class: 'btn btn-info'
         %hr

spec/models/repository_spec.rb

@@ -2,6 +2,7 @@ require 'spec_helper'
 describe Repository, models: true do
   include RepoHelpers
+  TestBlob = Struct.new(:name)
   let(:repository) { create(:project).repository }
   let(:user) { create(:user) }
@@ -131,7 +132,6 @@ describe Repository, models: true do
   describe "#license" do
     before do
       repository.send(:cache).expire(:license)
-      TestBlob = Struct.new(:name)
     end
     it 'test selection preference' do
@@ -149,10 +149,6 @@ describe Repository, models: true do
   end
   describe "#gitlab_ci_yml" do
-    before do
-      TestBlob = Struct.new(:name)
-    end
-
     it 'returns valid file' do
       files = [TestBlob.new('file'), TestBlob.new('.gitlab-ci.yml'), TestBlob.new('copying')]
       expect(repository.tree).to receive(:blobs).and_return(files)