radioGroup toolTipMetadata field name has different case then other tabs (version 2.1)

[jfcote87]

radioGroup definition contains a field name "tooltipMetadata". All other tabs have this field name "toolTipMetadata".

[LarryKlugerDS]

Thanks for catching this. I have filed core ticket EC-1616. Unfortunately, since fixing this error while still maintaining backwards compatibility with existing v2.1 will be a bit tricky, the problem may persist until the next rev of the API itself.