Code review comment for lp:~peppujols/stellarium/printsky

I agree that it needs some fixing.

Matthew, Pep, did you see the experimental build of Stellarium I've uploaded here?
https://launchpad.net/stellarium/+download
One of the two new plug-ins included in it is a _fixed_ version of Print Sky.

I can provide a patch with my changes. The main problem: it seems that the absolute coordinates used assume a resolution of 300 DPI (dots per inch). If the printer uses a higher resolution, the text appears too small and/or with wrong line spacing. My patch also includes some improvements to the interface.