Merge branch 'master' of sissource.ethz.ch:sispub/openbis

.../cisd/authentication/ldap/LDAPDirectoryConfiguration.java

...cisd/openbis/installer/izpack/AbstractScriptExecutor.java

...sx/cisd/openbis/installer/izpack/ExecuteBackupAction.java

.../systemsx/cisd/openbis/generic/server/task/UserGroup.java

...is/generic/server/task/UserManagementMaintenanceTask.java

...ystemsx/cisd/openbis/generic/server/task/UserManager.java

...x/cisd/openbis/generic/server/task/UserManagerConfig.java

...ch/ethz/sis/openbis/systemtest/asapi/v3/AbstractTest.java

...enbis/systemtest/task/UserManagerExpectationsBuilder.java

...ystemsx/cisd/openbis/systemtest/task/UserManagerTest.java

.../cisd/openbis/systemtest/task/UserManagerTestService.java

openbis_all/source/bash/build/build.sh