Add chinese/spanish support and simplify content fields

There is now just one!
Merge branch 'add-multi-lang-content-support'
Add indexes related to 0272a8d
No need to index category, since they are easier to browse

Also breaking search indexing in relation to guide steps
Remove indexing guide steps for now, they are too different from articles
Display keywords correctly
This is unnecessary and breaking non-english search
Page renders now when there's a category description
This is not helping, searchify should take care of this. I'm removing.
Fixes issue with category and guides

Guides were not displaying because of a missing ‘,’ in the meta tag
information in the guides view. Added a helper to generate the meta_tag
options

Also fixed and issue where the categories were not linking to the
correct article urls.

Gave the category factory a more proper title using Faker.