bfconvert: fix conversion of individual series

This ensures that the image width and height are set correctly if only
one series is being converted.  Previously, attempting to convert a
series with dimensions different from series 0 would have resulted in a
FormatException.
merge dev_4_4 -D org -I include -E exclude: PR 673 (Make configuration file suffix configurable)
merge dev_4_4 -D org -I include -E exclude: PR 710 (Data test updates (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 727 (Data tests: adjust memory calculations based upon thread count (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 728 (bfconvert: fix conversion of individual series)