Crashing Due to Bad BBox Calculation

[speedplane]

In layout.py, we're calculating the bbox incorrectly, which is leading to crashes with certain PDFs.

 def __init__(self, name, bbox, matrix):
        self.name = name
        self.matrix = matrix
        (x, y, w, h) = bbox
        bbox = get_bound(apply_matrix_pt(matrix, (p, q))
                         for (p, q) in ((x, y), (x+w, y), (x, y+h), (x+w, y+h)))
        LTLayoutContainer.__init__(self, bbox)
        return

Should be Changed to:

def __init__(self, name, bbox, matrix):
        self.name = name
        self.matrix = matrix
        (x0, y0, x1, y1) = bbox
        points = [apply_matrix_pt(matrix, p) 
            for p in [(x0, y0), (x1, y0), (x0, y1), (x1, y1)]]
        bbox = get_bound(points)
        LTLayoutContainer.__init__(self, bbox)
        return

Here is a link to the PDF where this crashes.