Flex: do not link to objectives that do not exist
Leica LIF: do not set the 'rgb' flag for 16-bit multi-channel data

Multi-channel images with more than 8 bits per pixel are not stored as
RGB images, even though the stored byte count suggests that they might
be.

See QA 7695 and
http://lists.openmicroscopy.org.uk/pipermail/ome-users/2013-November/004051.html
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 767 (Fix Channel.Color interpretation in ImageJ)
merge develop -D org -I include -E exclude: PR 775 (Add JWlz to Ivy dependencies)
merge develop -D org -I include -E exclude: PR 777 (Various minor import fixes)
merge develop -D org -I include -E exclude: PR 781 (Add modulo annotation support for Zeiss CZI data)
merge develop -D org -I include -E exclude: PR 782 (Make configuration file suffix configurable (rebased onto develop))
merge develop -D org -I include -E exclude: PR 783 (Leica LIF: do not set the 'rgb' flag for 16-bit multi-channel data)