dataprovider case-sensitive

[mboegem]

I was trying to display data in the powergrid coming from an Oracle database, which will return all column names in uppercase.
It took me some time to realise that setting the dataprovider with the exact same name in lower case, was actually the issue why my data wasn't displayed.
This is kind of an exception on how Servoy is handling dataproviders everywhere else. Is this something that can be changed?