-------------------
Changed:
* `22 <https://github.com/garyd203/ssmash/issues/22>`_ : Change command line
API so that the input and output files are options, rather than arguments.
* `22 <https://github.com/garyd203/ssmash/issues/22>`_ : Change command line
API so that invalidating an ECS Service is done through a chained
sub-command, rather than additional options.
Added:
* `8 <https://github.com/garyd203/ssmash/issues/8>`_ : Support lists of plain
values, which are stored as a SSM StringList parameter
Removed:
* You can't specify input and output files as positional arguments any more.
Use `--input-file FILENAME` and `--output-file FILENAME` instead.
* The `--invalidate-ecs-service` and `--invalidation-role` options have been
replaced with the `invalidate-ecs` command.