Avionics classes for Transponder, ADF, changed namespace to 2ndlevel

src/blackmisc/blackmisc.h

@@ -3,12 +3,9 @@
 
 // just a dummy header, namespace documentation will go here
 
-
 /**
- * @namespace BlackMisc
- * BlackMisc is the namespace for generic utility classes. As of its nature
- * (containing central classes such as CLogMessage, or CPhysicalQuantity),
- * BlackMisc is available in any other compilation unit.
+ * @namespace Aviation
+ * Aviation and Avionics classes such as CHeading or CTransponder
  */
 
 #endif