Add tests (+ empty implementations) for Probes API
Merge branch 'master' into probes
Test refactoring
Implement ProbeStopwatch
Fix bad assertions
Implement manual probe/controller
First attempt at instrumenting probe (incomplete)
Fix MyClassLoader

Now, it actually loads the class by itself. The test fails for different
reason than that the loader is not distinguishable from the normal (i.e.
application) one.
Mini refactoring
Add test for de-instrumentation
Naive (not working) deinstrumentation
Add toString() for easier debugging
Prevent class redefinition
Add missing hashCode/equals
Print stderr with JUnit/Ant
Remove debugging print
Fix bad assertion in a test
Add StringUtils.join()
Extra arguments passing (needs refactoring)
Hide extra arguments a bit more