BIS-51 / SP-175: Test cleanup

...cisd/openbis/systemtest/UpdateExperimentOfSampleTest.java

...va/ch/systemsx/cisd/openbis/systemtest/base/BaseTest.java

...sd/openbis/systemtest/base/auth/AndAuthorizationRule.java

.../cisd/openbis/systemtest/base/auth/AuthorizationRule.java

.../openbis/systemtest/base/auth/BasicAuthorizationRule.java

...emsx/cisd/openbis/systemtest/base/auth/GuardedDomain.java

...sd/openbis/systemtest/base/auth/NotAuthorizationRule.java

...isd/openbis/systemtest/base/auth/OrAuthorizationRule.java

...msx/cisd/openbis/systemtest/base/auth/RolePermutator.java

...stemsx/cisd/openbis/systemtest/base/auth/RuleBuilder.java

...ystemsx/cisd/openbis/systemtest/base/builder/Builder.java

...openbis/systemtest/base/builder/DataSetUpdateBuilder.java

...sd/openbis/systemtest/base/builder/ExperimentBuilder.java

...nbis/systemtest/base/builder/ExperimentUpdateBuilder.java

.../openbis/systemtest/base/builder/ExternalDataBuilder.java

.../cisd/openbis/systemtest/base/builder/ProjectBuilder.java

...openbis/systemtest/base/builder/ProjectUpdateBuilder.java

...x/cisd/openbis/systemtest/base/builder/SampleBuilder.java

.../openbis/systemtest/base/builder/SampleUpdateBuilder.java

.../cisd/openbis/systemtest/base/builder/SessionBuilder.java