ROUND-COORDINATE     New function to round coordinates. I use what we call "mercantile     rounding", instead of the CL round to nearest even number, when in     doubt.
ROUND-COORDINATE
    New function to round coordinates. I use what we call "mercantile
    rounding", instead of the CL round to nearest even number, when in
    doubt.

    Reason: As the CLIM drawing model is specified, you quite often
    want to operate with coordinates, which are multiples of 1/2.
    Using CL:ROUND gives you "random" results. Using "mercantile
    rounding" gives you consistent results.

MEDIUM-DRAW-LINE*
MEDIUM-DRAW-LINES*
    Lines are not clipped to the X11-coordinate range. Also uses ROUND-COORDINATE.

MEDIUM-DRAW-RECTANGLE*
    Dito for rectangles.

MEDIUM-DRAW-TEXT*
    Uses ROUND-COORDINATE now.

quek/mcclim,informatimago/mcclim,quek/mcclim,informatimago/mcclim