ECL-134 Fixed test for CreateRepresentation.
ECL-134 Refactorisation of getRecord tests.
ECL-134 Changes in testing deleteRecord method.
ECL-134 Minor changes in documentation of DataSet and RecordServiceClient.
ECL-134 DataSetServiceClientTest Exception->MCSException.
ECL-134 Fixed createRepresentation method test.
ECL-134 Refactoring getRepresentations tests.
ECL-134 Working on getRepresentation(cloudId, schema).
ECL-134 Tests for getRepresentation(cloudId, schema).