ECL-134 Minor refactorisation in DataSetClient.
ECL-134 Reusable paths in RecordServiceClient.
ECL-134 Changing tapes URLs in RecordServiceClient.
Added ola-nocommit to .gitignore.
ECL-134 Further refactorisation of RecordServiceClient.
ECL-134 Refactored tapes names in RecordServiceClient.
ECL-134 Renamed tapes in RecordServiceClient.
ECL-134 RecordServiceClient: changing test methods and rerecording tapes.
ECL-134 Refactoring createRepresentation tests.
ECL-134 Finished refactoring CreateRepresentation methods.