game.so:
- Move q_shared.* into src/common?

client:
- Integrate a signalhandler and print an backtrace with Maxims
  libexecinfo (only 2 sourcefiles, BSD licensed)
- Add a optional overwrite for the defaults.cfg
- Rename the config.cfg to yq2config.cfg for compatiblity with other
  sourceports

doc:
- Write a new, much more polished homepage
- Rework the startup script:
  - Add unclutter

Long term goals:
- Backport to Windows