1.6.0 is now released which does a lot of things.
Notably,
a) There's now gallery support for dia shapes, i.e. tools->gallery will
contain all the stock dia shapes
b) The filter now recalculates object widths and positioning and
connector points etc. based on the width of the contained text. Which is
basically what dia itself does, i.e. the widths saved in the .dia file
are mostly ignored by dia :-(. That should improve positioning and sizes
relative to "what dia would do"
c) Added a few more connector points to a few more of the built-in
shapes
C.
