Use ODI api adapters

Move ODI away from using GDS adapters and use their own flavour of adapters.
Update to use new search endpoint

Queries now use unified_search endpoint.
Skip failing Bad Index Test

Index is currently hardcoded so we can skip this for the moment.
At the point we put odi index in, this test will need re-instating.
Merge pull request #85 from theodi/make_compatible_with_search

Make compatible with search