Started work on adding tests

[Marcel Offermans]

Hi all, I just committed the first couple of unit tests and added  
some info in the main pom to support them (junit and easymock  
dependencies). While testing these I still had some weird errors  
every now and then compiling the project, so if you're experienced in  
maven, please review the current project setup and let me know if I  
made any mistakes.

Furthermore, I added a site.xml file so we can customize our  
generated site. I tried to automatically add unit test results, but  
that still does not work.

As soon as these unit tests are fully integrated, I intend to develop  
a maven plugin so we can run integration tests too. Just to be clear,  
unit tests (in my definition) are tests that run on a single class,  
in isolation, while using stubs or mock objects for all dependencies.  
Integration tests are tests that run in the OSGi framework itself and  
test stuff at the public API (ie service) level.

Greetings, Marcel