[TIMOB-2816] iOS: improve log message for views with auto height 0

it would be very helpful if you could offer more detail in the logs to that it's easier to locatet the source

[WARN] [object TiUIView] has an auto height value of 0, meaning this view may not be visible.

Jim C. 2011-04-15
"[WARN] [object TiUIView] has an auto height value of 0, meaning this view may not be visible."

I have been struggling with this warning. I pulled the code from KitchenSink and placed it in my app. No matter what I do, I cant seem to eliminate the warning.
```
   var textView = Ti.UI.createView({
       height:'auto',
       layout:'vertical',
       left:90,
       top:10,
       bottom:10,
       right:10
   });
   
```
Stephen Tramer 2011-04-15

Log messages should probably include a reference to the line of JS code (where possible; doesn't our exception handler do this?)
Stephen Tramer 2012-07-26

Message is no longer printed.