pg-migrator - src: Create options.c file; restructure main() to be

Log Message:
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Create options.c file;  restructure main() to be clearer.

Modified Files:
--------------
    src:
        Makefile (r1.8 -> r1.9)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/src/Makefile.diff?r1=1.8&r2=1.9)
        pg_migrator.c (r1.54 -> r1.55)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/src/pg_migrator.c.diff?r1=1.54&r2=1.55)
        pg_migrator.h (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/src/pg_migrator.h.diff?r1=1.4&r2=1.5)
        relfilenode.c (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/src/relfilenode.c.diff?r1=1.3&r2=1.4)

Added Files:
-----------
    src:
        option.c (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pg-migrator/src/option.c?rev=1.1&content-type=text/x-cvsweb-markup)