README of LCLS model output files.

Auth: Greg White, 11-Sep-2019

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This directory contains the released lattice and optics description files of 
the Linac Coherent Light Source.

Files pertaining to Versioned releases are in subdirecoties named after their release date.
 
Prior to jan 2019, these versioned releases were placed directly under 
/afs/slac/www/grp/ad/model/output/lcls/

After Jan 2019,  these versioned releases are placed under 
/afs/slac/www/grp/ad/model/output/lcls/mad/

The latest release, vesioned or not, is placed under 
/afs/slac/www/grp/ad/model/output/lcls/mad/latest/