Revert "CHERKASY-58 RESTful webservice. Implement /studies/<studyId>/concepts"

This reverts commit 613fd7f70c6f4c4cc7e6dc1c7c10e64b39f23e47.
ws
Revert "Revert "CHERKASY-58 RESTful webservice. Implement /studies/<studyId>/concepts""

This reverts commit bca58c7e7f4115d18e776e2cd28c2ac0fdf0fec6.
Merge pull request #19 from thehyve/features/CHERKASY-implement-api-calls

Features/cherkasy implement api calls
CHERKASY-61 RESTful webservice: Implement /studies/<studyId>/concepts/<conceptId>/subjects
-implementation of PatientsResourceService.getPatients(OntologyTerm)
-integration tests
CHERKASY-61 RESTful webservice: Implement /studies/<studyId>/concepts/<conceptId>/subjects
-implementation of OntologyTerm.getPatients()
-integration tests
-removed previous impl of PatientsResourceService.getPatients(OntologyTerm)
CHERKASY-61 RESTful webservice: Implement /studies/<studyId>/concepts/<conceptId>/subjects
-modifications following a pull request
CHERKASY-61 RESTful webservice: Implement /studies/<studyId>/concepts/<conceptId>/subjects
-fixing bug
CHERKASY-61 RESTful webservice: Implement /studies/<studyId>/concepts/<conceptId>/subjects
-some fixes on the test related code
Merge pull request #21 from thehyve/features/CHERKASY-61_RESTcall_subjects_per_concept

CHERKASY-61 RESTful webservice: Implement /studies/<studyId>/concepts/<c...
Merge branch 'master' into features/cherkasy-implement-observations-calls2