Hopefully fixed some bugs.
Modified Files:
resource/de/fhworms/ztt/ox/resources/bundles/CourseCatalogEditor.properties
resource/de/fhworms/ztt/ox/resources/bundles/ExamWizard.properties
resource/de/fhworms/ztt/ox/resources/bundles/ProblemCatalogEditor.properties
resource/de/fhworms/ztt/ox/resources/bundles/StudentCatalogEditor.properties
src/java/de/fhworms/ztt/ox/examadministrationclient/CourseCatalogEditor.java
src/java/de/fhworms/ztt/ox/examadministrationclient/CourseModel.java
src/java/de/fhworms/ztt/ox/examadministrationclient/ExamAdministrationClient.java
src/java/de/fhworms/ztt/ox/examadministrationclient/ExamWizard.java
src/java/de/fhworms/ztt/ox/examadministrationclient/ProblemCatalogController.java
src/java/de/fhworms/ztt/ox/examadministrationclient/ProblemCatalogEditor.java
src/java/de/fhworms/ztt/ox/examadministrationclient/ProblemModel.java
src/java/de/fhworms/ztt/ox/examadministrationclient/StudentCatalogEditor.java
src/java/de/fhworms/ztt/ox/examadministrationclient/StudentModel.java
