Bump OMERO and Bio-Formats versions to 5.0.2

To be tested by http://ci.openmicroscopy.org/job/OME-5.0-merge-homebrew/?.

Check that:
- [x] Bio-Formats and OMERO build (for all versions of Ice)
- [x] the output of `showinf` is correct (vcs revision, date)
- [x] the log of the fake import is correct (version numbers, revision numbers...)