Fix XML config for Bugs1919Tests.test_GitHub_214

Fix XML config for Bugs1919Tests.test_GitHub_214

The test started breaking on GitHub, but ran fine locally, which implied
some kind of classpath ordering issue. As it turned out, for XML tests
all JARs found in the sandbox directory are added to the classpath
automatically. So if we do not want them on the classpath, we need to
delete or rename them before running.

In this case, however, it was enough to make sure the classpath order is
correct, so that the duplicate 'Application' class is found in the woven
version, not in the unwoven one by chance. We therefore need to use the
correct syntax,
  1. separating classpath entries by comma, not space,
  2. prepending '$sandbox/' to the JAR name.

Now the test reliably does what it should have done from the start: run
the woven code. Until now, the output assertions were adjusted to the
weird result of no aspect logs being present on the console, which was
wrong right from the start.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>