Some cleanup, plus updating factories for future tests
Initial tests for guides, small guide tweaks
Initial tests for article dashboard
Making Quick Answers easier to add/view plus tests
Using older version of nokogiri because running into errors
Merge branch 'moar-tests-and-admin-betterness'
Simplify user/category/contact views and forms

Don't need to show so much info, it's confusing
Add tests for all that too
Merge branch 'simplify-user-contact-category'
Adding memcachier gem, since it's needed
Add better_error/binding_of_calller

These are mainstays in my dev env. I took the liberty to organize the
Gemfile a bit.