[FIX] mogenerator 1.6.1. Fix ObjC/PPC message-nil-float-method-result…

… gotcha in generated code reported by Ruotger Skupin. Used to generate this code:

 - (float)someAttributeValue {
    return [[self someAttribute] floatValue];
 }

Now generate this code:

 - (float)someAttributeValue {
    NSNumber *result = [self someAttribute];
    return result ? [result floatValue] : 0;
 }

Ref:
 <http://unixjunkie.blogspot.com/2006/02/messaging-nil-in-objective-c.html>
 <http://ridiculousfish.com/blog/archives/2005/05/29/nil/>

machine.m.motemplate

@@ -23,7 +23,8 @@
 <$if Attribute.hasScalarAttributeType$>
 
 - (<$Attribute.scalarAttributeType$>)<$Attribute.name$>Value {
-	return [[self <$Attribute.name$>] <$Attribute.scalarAttributeType.camelCaseString$>Value];
+	NSNumber *result = [self <$Attribute.name$>];
+	return result ? [result <$Attribute.scalarAttributeType.camelCaseString$>Value] : 0;
 }
 
 - (void)set<$Attribute.name.initialCapitalString$>Value:(<$Attribute.scalarAttributeType$>)value_ {

mogenerator.m

@@ -270,7 +270,7 @@ - (int) application: (DDCliApplication *) app
 
     if (_version)
     {
-        printf("mogenerator 1.6. By Jonathan 'Wolf' Rentzsch + friends.\n");
+        printf("mogenerator 1.6.1. By Jonathan 'Wolf' Rentzsch + friends.\n");
         return EXIT_SUCCESS;
     }