Documentation links to CAS protocol broken

[godlike64]

The following section of the documentation contains links to a third-party detailing the protocol:

http://django-mama-cas.readthedocs.io/en/latest/protocol.html

However, none of these appear to work. Additionally, there's no link to the CAS 3.0 protocol, so it would be nice if that could be added.

[manelclos]

@godlike64, please see PR #61, do you have links for CAS 1/2/3 protocols?

[godlike64]

@manelclos I think it would maybe be https://apereo.github.io/cas/5.2.x/protocol/CAS-Protocol-Specification.html ? Full specification for all versions 1, 2 and 3.

[manelclos]

Ok, I'll use the parent page which talks about the protocol and its specifications. CAS-Protocol-Specification.html includes CAS 2.0, but in the parent page they have a link dedicated to version 2.0.

https://apereo.github.io/cas/5.2.x/protocol/CAS-Protocol.html

Thanks!

[manelclos]

PR #61 has been merged.