Rename KCmd to avoid conflicts with KDE4

src/main.cpp

@@ -25,7 +25,7 @@ static const char *description =
   I18N_NOOP("KnowIt - notes management utility");
 
 
-static KCmdLineOptions options[] =
+static TDECmdLineOptions options[] =
 {
   { "+file", I18N_NOOP("Document to open"), 0 },
   { 0, 0, 0 }