Added new property "date_transitioned" to metadata when an object is transitioned.
Fixed issue in download script that was causing the attachments links on the dataset detail page fail
Credit to Jay van Schyndel at JCU
Fixes https://github.com/redbox-mint/redbox/issues/47
Adding admin bulk csv export feature.
Merge pull request #49 from redbox-mint/master

Updating branch with latest fixes in master