Custom Commands Don't Appear with Fungus Root in /Assets/Plugins

_**Amended per conclusions from below**_

Fungus does not find custom commands when placed in the /Assets/Plugins Special Folder (otherwise seems to work in any other random folder)

Examples:

Imported to: Assets/Fungus 
-> All Commands Found

Moved to: Assets/Plugins/Fungus
Command in:
Assets/Plugins -> FOUND
Assets/Plugins/Commands  -> FOUND
Assets/Commands -> NOT FOUND
Assets/Scripts/Commands -> NOT FOUND

If this can't be worked around, that's fine, but I feel like it should be documented in some way or that custom commands should be more clearly given a standard folder to reside in.

Obviously, the ideal here is that we can use whatever folder structure we want and we can move Fungus around to whatever our hierarchy style guide needs it to be.

Either way, minor issue, but hopefully it'll help anyone who ends up confused for two days like me.
