Command Infomation

[jcxldn]

This would mean that commands (and plugins, see #6) would have some information on how they should be used, for example, syntax examples or, in the case of plugins, author and version information.

[jcxldn]

An idea for this is to change the help code to get the commands in a list, then fetch the information in a subclass in the command, before outputting it to the screen.

[jcxldn]

Enabled by #12