Remove hard dependency on log4j from core Bio-Formats/SCIFIO
Remove loci.formats.utests.tiff.OMETiffWriterTest

All this test does is check for open file handles; we now have much more
comprehensive tests that cover the same thing (and without depending
upon log4j).
Remove commented-out log4j code from the ome-io component

These classes are beyond obsolete anyway, and will likely be removed in
the next major release.
Merge remote-tracking branch 'origin/dev_4_4' into logging

Conflicts:
	components/scifio/test/loci/formats/utests/tiff/OMETiffWriterTest.java
Merge pull request #368 from melissalinkert/logging

Remove hard dependency on log4j