Make the commands *slightly* easier to use
Make the commands *slightly* easier to use

- Provide error messages for if someone does something weird.
- Allow "module" to be an alias for "cog"
- Allow "cmd" to be an alias for "command"
- These permissions will now require Manage Server, because while they're
  advanced and potentially dangerous, the worst that can happen is that you
  accidentally lock yourself out of commands. Besides, you can't even lock
  the permissions commands anyway.

Ikusaba-san/Chiaki-Nanami