0.5.6
 - fix: use "deform" for datasets that don't have "bright_avg"
   in preview
0.5.5
 - ref: move to dcor_shared 0.2.5
0.5.4
 - enh: add a ``job_id`` to the "preview" background job and,
   depending on whether or not the ckanext-dc_serve extensions is
   installed, wait for the "condense" background job before
   attempting to create a preview image; this avoids computing
   the brightness twice (#2)
0.5.3
 - fix: manifest did not include .yml
0.5.2
 - maintenance release
0.5.1
 - maintenance release
0.5.0
 - initial open-sourced version