Improve test coverage

Author: rammrain

src/main/java/ee/bitweb/core/amqp/CoreExceptionStrategy.java

@@ -8,7 +8,6 @@
 @RequiredArgsConstructor
 public class CoreExceptionStrategy extends ConditionalRejectingErrorHandler.DefaultExceptionStrategy {
 
-    // todo: mis ja miks vajalik? kas keegi mäletab?
     @Override
     public boolean isUserCauseFatal(Throwable t) {
         return true;