[Dovecot] Documentation Clarification

[andreas at cymail.eu]

Can somebody please clarify the following in the documentation?

I am actually looging at the 2.x docs:
In the http://wiki2.dovecot.org/Authentication file there is
a good effort to clarify between authentication mechanisms and password 
schemes.
The authentication mechanisms are described in 
http://wiki2.dovecot.org/Authentication/Mechanisms.
That is fine. But then looking at the 
http://wiki2.dovecot.org/Authentication/PasswordSchemes
there is a section "Non-plaintext authentication mechanisms" which 
looks to me to be a repeat
of what there is in the description of the authentication mechanisms. 
This section lists one more
mechanism, LANMAN.

Can somebody explain why this section is in this file? And which of the 
two is applicable.
Thank you

Andreas