OME-XML: fix image name population

This prevents MetadataTools from overwriting the Image.Name that was
originally stored in the file.
merge develop -D org -I include -E exclude: PR 528 (Tile performance improvements for VMS and NDPI)
merge develop -D org -I include -E exclude: PR 556 (Add ``mkfake`` tool)
merge develop -D org -I include -E exclude: PR 602 (Sample Generation and FLIM Sample)
merge develop -D org -I include -E exclude: PR 605 (Add support for MINC 2.0 data)
merge develop -D org -I include -E exclude: PR 606 (CellSens: sort arrays of pixels files (rebased onto develop))
merge develop -D org -I include -E exclude: PR 612 (OME-XML: fix image name population)