Minor Serialization Update

Hi,

So, apparently, there was a minor problem with the deserializer in that it would set fields to null.  Apparently, SmartGWT seems to think that setting a String field to null is actually setting it to a value.  The practical upshot is that if you set a String field to null, SmartGWT will think that that null value is important in a way that it wouldn't be had you not done anything at all.

This resulted in some stupid problems, like hovering over elements giving null, and some warnings in the console. It fell on me to fix.

So, this morning, I wrote a Python script that converted the code to check for setting things to null.  The code worked perfectly the first time it ran.

Thanks,

Ian