[LOGMGR-260] System loggers run with level ALL

https://issues.jboss.org/browse/LOGMGR-260

core/src/main/java/org/jboss/logmanager/Logger.java

@@ -89,8 +89,8 @@ public static Logger getLogger(final String name, final String bundleName) {
     Logger(final LoggerNode loggerNode, final String name) {
         // Don't set up the bundle in the parent...
         super(name, null);
-        // We maintain our own level
-        super.setLevel(Level.ALL);
+        // We have to propagate our level to an internal data structure in the superclass
+        super.setLevel(loggerNode.getLevel());
         this.loggerNode = loggerNode;
     }
 
@@ -121,6 +121,8 @@ public Filter getFilter() {
      * log level reflects an older effective level than the actual level).
      */
     public void setLevel(Level newLevel) throws SecurityException {
+        // We have to propagate our level to an internal data structure in the superclass
+        super.setLevel(newLevel);
         LogContext.checkAccess();
         loggerNode.setLevel(newLevel);
     }