Leena&Michal: Enforce foreign key relationship between claims and claimants tables
Leena&Michal: Update tests to link a claimant to the draft
Merge branch 'master' into update_feature_tests_with_claimant_id

Conflicts:
	rps/feature_tests/submitting_a_claim.feature
Merge pull request #222 from InsolvencyService/update_feature_tests_with_claimant_id

Update feature tests with claimant