ENH: bump to latest scifio-imageio

Updated the SCIFIO-ImageIO to fix a pixel type detection error. It
seemed that the returned pixel type was clashing with the
UNKNOWNCOMPONENTTYPE constant, causing an unknown component error to be
thrown erroneously.

Change-Id: I8f691f82da9288709e48626dd13d102d9df15bff
Merge topic 'fix-pixel-type-detection'

9f6f245a ENH: bump to latest scifio-imageio