dataset purge API

[dread]

Purging datasets (deleting them fully, not just changing the state to 'deleted') is important for users testing dataset creation over the API on a test CKAN instance.

Without this, they need to resort to more difficult methods such as:

• cleaning and reloading the database
• setting the test datasets to state 'deleted' and also appending a suffix '_00' and incrementing the number until there is no clash of names.

Requested for NHSIC.

Implementation

• This could slot into the Action API.
• Of course we would need to ensure the user's had been given the specific right to purge.
• I suggest we log the full details of the dataset being purged.