v0.46.02 Alpha

Updates in this release:
Line number reported for errors in program files with DOS/Windows line endings corrected.
Fixed display of labels for immediate commands in trace mode.
PCLPS disallowed for use with XAIL.
Added OS to output of ABOUT command.
Fixed regression causing EMDIR, CAT 4 and PDIR to not list file names. Order of file names in list improved in MacOS and Linux.
Added -s and -S command line switches to suppress "about" command output on startup.
Clarifed in manual that double quotes should not be used for the label or filename following commands CLP, READA, WRTA, READS,WRTS.
New commands: CHECK labelname , BREAK, CLCHECK and TRACEX for debugging programs.