#3 argus (unit) tests don't work

[Taco IJsselmuiden]

Currently, the (unit) tests for Argus don't work. Two
problems exist:

1: the EasyMock library is not found during the tests
2: the tests are a separate plugin and therefore in a
different classloader. package-private stuff from argus
can't be tested this way.

Patch for both problems attached, which make the tests
work again (although some of them fail :-) )

[Taco IJsselmuiden]

necessary fixes for the argus test-suite