A new function, OEIsFastROCSShapeQuery, has been added that determines if
an OEShapeQuery object is compatible with FastROCS TK.
An issue that caused performance slowdown in OESelfShape has been fixed.
An issue that caused OEGridColorFunc to give incorrect results when used with
a custom color force field containing a range value other than 1.0 has been fixed.
The UserColor example has been updated to more robustly check return statuses.
See Calculating Overlap.