Fixing the strange edge-case of trying to define a command with the same alias being defined multiple times or aliases being the same as the command key. This is now excluded at the Command metaclass level.
Fixing the strange edge-case of trying to define a command with the same alias being defined multiple times or aliases being the same as the command key. This is now excluded at the Command metaclass level.

tectronics/evennia,google-code-export/evennia,tectronics/evennia,google-code-export/evennia,tectronics/evennia,google-code-export/evennia