The `type: :feature` is automatically detected by RSpec because these
tests are inside the `spec/features` folder. Using `feature` re-adds a
`type: :feature` to these files, which will result in a conflict when we
upgrade to Rails 5.1's system tests.
Because of this change, we also need to change `background` to `before`
or else these tests will fail.
As pointed out in PR consul#2734:
"After clicking the first link, there's an AJAX request which replaces
the existing `.in-favor a` and `.against a` links with new elements. So
if Capybara tries to click the existing `.against a` link at the same
moment it's being replaced, clicking the link won't generate a new
request".
Making Capybara check the page for new content before clicking the
second link solves the problem.
This commit solves issues afecting both Madrid's fork and the original
CONSUL repo.
