adding group to build.gradle
gradle: add settings.gradle to make the project work as child project
whitespace fix
Add method to load Class from Jar File
DropController: reintroducing the callback class
Adding DropQueueCallback class to mimic the Queue-behavior.
Add a receive function to the controller.
DropController: Retrieving DropMessages works
DropListenerTest: fix tests with changes on API.
DropController: add Javadoc to retrieve
Merge pull request #100 from Gottox/master

Make changes to Drop* infrastructure and build system to make the TestModule work properly.
Update class diagram
Merge pull request #104 from k-c13/uml-class-diagram

Update class diagram