vchoi_fork

[svn-r4489] Purpose:
    Bug Fix
Description:
    When writing (or reading) the entire dataset to a chunked dataset, there
    was a boundary case where the code to generate the description of the
    piece of the dataset to read into the buffer for data conversion would
    attempt to read off the boundary of the dataset.  This was occuring because
    the code to detect the edge of the dataset was not propagating the change
    up through the remaining dimensions when an edge in a fast changing
    dimension was detected.
Solution:
    Propagate edge detection up through slower changing dimensions properly.
Platforms tested:
    Linux 2.2.18smp (eirene)