Scheduler, minor: java 7 changes, 2.0 usage, formatting
UoWFile, minor: java 7 changes, 2.0 usage, formatting
Build System, minor: sorted test dependencies in libraries.gradle
CircuitBreaker: use Awaitility in test instead of Thread.sleep
Scheduler: use Awaitility in test instead of Thread.sleep

Test now run closer to as fast as possible.
The @minutely test depend on the clock and can last ~0 to ~1 minute.