Adapted HITs-per-group requirements.
Added Django id as list_diplay option for HIT administration model.
Added export action that computes alpha/kappa/pi/S agreement scores for HIT QuerySets.
Fixed export_to_apf() to prevent empty lines in its output.
Finalised export_hit_results_agreements() method.
Made agreement score computation more robust.
Import logging really makes sense here ;)
Added A=B case to results output in export_to_apf().
Refining computation of annotator agreement.
Improved ModelAdmin for RankingResult instances.
Slight update to computation of ranking results for status view.  We only want to consider results which belong to active HITs.
Exclude MTurk results from status view as well.
PyLint cleanup.
Added DFKI and USAAR to list of contributing groups.
Added top 25 contributors to status page.
Forgot to activate user stats. We might later show three tables giving top-10 contributors based on number of completed HITs, average time per HIT and total contributed annotation time.
Added MTurk instructions.
Fix.
Finalised nicer MTurk instructions.
Prepared addition of live rankings.  These would be computed using an external script by Philipp Koehn and, as their computation likely takes some time, be collected using a cron job calling update_ranking() via HTTP.