Oh my, where shall I start?

* pptout seems to crash if you try to close a window while gs is
running (can't make that happen on demand anymore)

* The rulers work semi-properly.

* If the number of open windows is 1 and you try to open another but fail
for some reason, so that you have an uncaught exception in the constructor
then the destroy_handler will end the program because count==1.
This will happen if you open a corrupt file.

* If you try to open a new window while gs is running, especially while
changing page the program chrashes.

* Text frames not updated when flow_around properties of other frames are
changed.

* Sometimes segfaults when using the window manager to close a window.

* Negative scaling broken in different ways in different frame types.

* Support for rotating things is sketchy.  The view is only rotated
for raster images, and the bounding box used for text flow around is
not correctly rotated.

* If something that text should flow around covers an entire text
frame, xml2ps eats all the memory and cpu it can get, to no avail.

... and probably a lot more.
