- added proper error reporting to the service
- some refactoring
- bugfixing

git-svn-id: https://gnunet.org/svn/gnunet@33219 140774ce-b5e7-0310-ab8b-a85725594a96
- updated error reporting functionality for the service
- client side initialization adapted

git-svn-id: https://gnunet.org/svn/gnunet@33220 140774ce-b5e7-0310-ab8b-a85725594a96