Log Message:
net/bandsnatch: update to 0.2.0

Breaking Change
 - The previous behaviour of running the download job with the base command has
   been moved into its own subcommand run in order to accommodate some features
   I plan to add in the future.

Added
 --dry-run flag to get a list of releases Bandsnatch would try to download,
 without actually downloading them.
 --debug flag to get some extra information in certain circumstances (Might be
 changed to --verbose in the future if I change my mind).

Fixed
 - Fix problem where some releases could crash a thread with missing field
   'download_type'.

Changed
 - New run subcommand which replaces the previous functionality of running the
   downloader on the base command.