style and consistency:

* rename CStatusMessages to CStatusMessageList
* rename NetworkVatlib to CNetworkVatlib
* replace all occurrences of Realname with RealName (correct camel case)
* CSequence method corresponding to CList::append is push_back
* don't compile the qdbuscpp2xml metadata plugin by default
* CAircraftIcao string members always trimmed and capitalized
* added CComSystem::roundTo25KHz
* using epsilon comparison in a couple of places

refs #81

src/blackmisc/nwserver.h

@@ -147,7 +147,7 @@ namespace BlackMisc
                 IndexAddress,
                 IndexPort,
                 IndexUserId,
-                IndexUserRealname,
+                IndexUserRealName,
                 IndexUserPassword
             };