#54 POP3 Compatibility mode

[Anonymous]

Enhacement to enable an optional (default off) POP3
compatability mode that disables all the non-USER
auth methods in the PEAR POP3 library. This will
require another patch to the PEAR library to
maintain, but will help users who are using POP3
servers that don't support auth inspection and
anything other than USER auth.

- From mwallis via dsweet