Unbreak and undeprecate by switching to GitHub repo which contains version
1.0.2 source code with the following changes:
- Autotools got replaced by a simple Makefile (still had to be patched)
- Includes patches from Debian, written by Martin Suchanek
- Fix a segmentation fault when no display is present
- Add the -extend' and -cover' image rendering options (modes)
- Reintroduced the screen mask `-screens' option from earlier versions