* Move "test-tags-config" as positional argument "config-test"
* Move "--create-db" as positional argument "create-db"
* Add mpd-sima commands as positional arguments:
config-test, create-db, generate-config, purge-history
* Move "test-tags-config" as positional argument "config-test"
* Move "--create-db" as positional argument "create-db"
* Add mpd-sima commands as positional arguments:
config-test, create-db, generate-config, purge-history