Was not calling MetadataTools.populatePixels, so xml metadata was incorrect
added IM3 reader to list of formats

Conflicts:

	components/formats-api/src/loci/formats/readers.txt
Respect metadata filtering settings when populating MetadataStore
Merge pull request #1451 from melissalinkert/im3-metadata

Fix im3 metadata
Merge remote-tracking branch 'origin/develop' into Update_ROIHandler