Allow users to get a role using a command

[adrianjmejias]

A use case for this could be, for example.

I as a server admin, I would like to set every channel private for everyone.
All channels but one, this channel provides server rules and etiquette, at the end It would hand the users a command to access the server functionality.

for example:
When users type >>ireadtherules they are given a role and are now able to access all the server's channels

[jagrosh]

This is listed on the things that won't be added page.