also check the columnDef.dataItemColumnValueExtractor when fetching a cell value. This means that the order of precedence for cell value producing functions is now:
also check the columnDef.dataItemColumnValueExtractor when fetching a cell value. This means that the order of precedence for cell value producing functions is now:

1. cellMetadata.dataItemColumnValueExtractor
2. rowMetadata.dataItemColumnValueExtractor
3. columnDef.dataItemColumnValueExtractor
4. options.dataItemColumnValueExtractor
5. the item itself

GerHobbelt/SlickGrid,GerHobbelt/SlickGrid,GerHobbelt/SlickGrid