New error and progress callbacks for the olMap component

The implementation in components/olmap/olmap.js should be complete, but the UI is not properly updated in the callbacks in maps/detail/compose.js.
It would be ideal to the get the message back because it can contain useful info like if the user uses an invalid attribute name in a style... but if it's hard to do and adds overhead perhaps the second request could work. Do we know what versions of IE this will fail on?