[LMS-1291] accept non-ssl connection from openBIS to DSS

datastore_server/etc/service.properties

...msx/cisd/openbis/dss/generic/server/ConfigParameters.java

...emsx/cisd/openbis/dss/generic/server/DataStoreServer.java

...penbis/dss/generic/server/EncapsulatedOpenBISService.java

datastore_server/source/java/dssApplicationContext.xml

...a/ch/systemsx/cisd/openbis/generic/server/ETLService.java

.../cisd/openbis/generic/shared/dto/DataStoreServerInfo.java