++++++++++++++++++
- The delete ``ia`` subcommand is now verbose by default.
- Added glob support to the delete ``ia`` subcommand (i.e. ``ia delete --glob='*jpg'``).
- Changed indexed metadata elements to clobber values instead of insert.
- AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY are now deprecated.
IAS3_ACCESS_KEY and IAS3_SECRET_KEY must be used if setting IAS3
keys via environment variables.