JCR test org.apache.jackrabbit.test.api.version.MergeActivityTest doesn't check whether the repository supports activities

The test: org.apache.jackrabbit.test.api.version.MergeActivityTest, during setup (the initNodes method call) does not handle the case when activities are not supported by the repository. Therefore, if the versionManager.createActivity("foobar") call fails with an UnsupportedRepositoryOperationException, the whole test fails.

The setup of the test should do something similar to org.apache.jackrabbit.test.api.version.ActivitiesTest: checkSupportedOption(Repository.OPTION_ACTIVITIES_SUPPORTED);