Updating ITKScifio email contact (rebased onto dev_5_0)



This is the same as gh-1276 but rebased onto dev_5_0.

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Mark H has updated the linked github repo readme (see http://lists.openmicroscopy.org.uk/pipermail/ome-users/2014-August/004666.html) but I thought it was worth also updating the correct point of contact in our docs for this plugin.