FedoraBundleRepositoryTest fails when packaged Eclipse is not installed

[mizdebsk]

FedoraBundleRepositoryTest relies on packaged Eclipse to be installed. When that is not the case, the test fails.
The test should use resources included in git repository and not rely system paths such as /usr/share/java/, /etc/java/eclipse.conf and so on.
Alternatively, the test can use JUnit Assume to skip test execution when packaged Eclipse is not installed.