Improvement request

[Thomas Kocourek <tkocou gmail com>]

DIA is a great program. But after using it, I have noted two ares where there is need for improvement.

1)
 When DIA saves out the information in the native format, layer 
information is lost. I would like to see the native DIA format support 
saving layers just like the GIMP program. That way, if I save a works in
 progress, I can reload it and edit the layers as necessary.

2) DIA automatically opens a saved file in a "best fit" mode. If I 
have a works in progress and want to expand the canvas, my only option 
is to resize by zooming to a smaller scale and adding the new layer. 
Eventually, that scheme will run out of steam because the objects will 
become too small to properly manipulate. I would like to see a "expand 
canvas" option which would retain the current zoom level, but add more 
canvas accessible by the scroll bars. Plus, one should be given the option of specifying which direction to expand into.