Bump gds-api-adapters to latest version

This version includes a new method to retrieve multiple needs by id.
Add Need.by_ids method

This new method allows multiple needs to be retrieved in one request.
Load bookmarked needs in a single request

We no longer need to make one requet per need; they can be loaded all
at once.
Merge pull request #101 from alphagov/make-use-of-multiple-needs-api

Make use of multiple needs api