-> The "plot" command needs to be fixed so that boundaries of contours do
not cause it to draw excessive amounts of lines connecting unrelated
contours. A specific "contour line type" would be useful.

-> DVO is not consistently placing the x/y axis labels, especially in
user-defined sections of the plot window.

-> DVO does not plot the end-points of histograms properly (e.g., the
line from the final data point on each end down to the x-axis is missing)
(fixed)

-> When opening a file of output, the "echo" and "fprintf" commands do not
relay output to the file in the same order. Also, until DVO is closed, the
output does not appear in the file.

