[dw-free] update LJ::MOGILEFS_CONFIG to support replication policies

[kareila]

[commit: http://hg.dwscoalition.org/dw-free/rev/75db4193e08b]

http://bugs.dwscoalition.org/show_bug.cgi?id=2928

Clarify defaults for MogileFS configuration.

Patch by kareila.

Files modified:

• cgi-bin/ljdefaults.pl
• cgi-bin/ljlib.pl

( Diff: 2 files changed. )