refs #642, fixed setup loading, in same step refs #636 clear cache

* changed signals in setup reader
* explicit mode is default
* detailed information what is loaded
* new log pattern
* allow to add message list to log component
* allow to clear cache by cmd line arg
* consolidated cmd names

src/blackmisc/statusmessage.h

@@ -205,6 +205,9 @@ namespace BlackMisc
         //! Message severity
         StatusSeverity getSeverity() const { return this->m_severity; }
 
+        //! Clip/reduce severity if higher (more critical)
+        bool clipSeverity(StatusSeverity severity);
+
         //! Info or debug, no warning or error
         bool isSeverityInfoOrLess() const { return this->m_severity == SeverityInfo || this->m_severity == SeverityDebug; }