Fix: Release 1.0.8.1
NOTE: Currently latest version of this extension is 1.0.8.5, not this one. This is because quick fixes are directly uploaded at PyPi. Source of the latest one can be found at hotfix-command-register branch.
Fixed subcommand auto-registering raises exception when base_desc is None.
Changed base_desc, sub_group_desc to base_description, subcommand_group_description. (Previous name is still available as a alias.)
Merged #44.
(#44) Added SlashCommandOptionType enum.