add optimizely
Add pagination component
Add pagination to the search results page
Merge pull request #357 from moneyadviceservice/feature/optimizely2

add optimizely
Merge pull request #359 from moneyadviceservice/pagination

Add pagination component
Update articles to consume the category attribute.
Modify the related categories partial to use real categories.
Modify the related links partial to use real categories and content.
Add an html processor for extracting the inner html of a node.
Add xpath targeting the intro paragraph.
Update the article decorator to be able to access article intro, and content without intro.
Update the article show template to the new design with related content.
Add a helper to manipulate the I18n locale in the context of a feature test.
Add Entity#== method.
Update features to check related content on article pages.
Update specs to check related content on article pages.