SP-45, BIS-21 split v1 and v2 scripts

...ver/registrator/JythonTopLevelDataSetRegistratorTest.java

.../ch/systemsx/cisd/etlserver/registrator/file-not-found.py

...ch/systemsx/cisd/etlserver/registrator/v2-dying-script.py

.../systemsx/cisd/etlserver/registrator/v2-file-not-found.py

...sx/cisd/etlserver/registrator/v2-rollback-dying-script.py

...systemsx/cisd/etlserver/registrator/v2-simple-testcase.py

...d/etlserver/registrator/v2-testcase-double-transaction.py

...r/registrator/v2-testcase-postregistration-hook-failed.py

...ator/v2-testcase-postregistration-hook-wrong-signature.py

...er/registrator/v2-testcase-preregistration-hook-failed.py

...etlserver/registrator/v2-testcase-registration-context.py

...stemsx/cisd/etlserver/registrator/v2-testcase-rollback.py

...etlserver/registrator/v2-testcase-without-post-storage.py