Issue #2257427 by sun: Run-tests.sh builds + rebuilds two kernels from scratch for every PHP process.
Issue #2257229 by marcingy | alasda: Cannot add external url or <front> as menu item.
Issue #2259167 by sun: Disable CSS/JS aggregation and caching in tests by default.
Issue #2258831 by sun | Wim Leers: Stream wrappers of test runner are not restored after test completion.