LMS-2506 Imposed uniform naming. Simplified API.

openbis/dist/server/register-master-data.sh

.../client/jython/api/v1/IMasterDataRegistrationService.java

...ent/jython/api/v1/IMasterDataRegistrationTransaction.java

...ython/api/v1/impl/MasterDataRegistrationScriptRunner.java

...v1/impl/MasterDataRegistrationScriptRunnerStandalone.java

...ent/jython/api/v1/impl/MasterDataRegistrationService.java

...jython/api/v1/impl/MasterDataRegistrationTransaction.java

...n/api/v1/impl/MasterDataRegistrationScriptRunnerTest.java

...s/generic/client/jython/api/v1/impl/simple-transaction.py