Demoting depends to recommends for most meta package dependencies

Hello,

I presume you are aware of your meta packages defining most KDE installations on Debian. Congratulations! The motivation of my patch is that I ran out of disk space in my virtual machine, so I wanted to delete packages that I had before installed as a dependency to a meta package. But I could not without also removing the meta package, which I did not want.

Since apt-get installs recommended packages by default, should you not demote your non-cricitical dependencies to recommendations? This effectively most often means that you have empty dependencies and moved everything to the recommendations. This may look a bit weird at first, but IMHO helps your users a lot since they can now remove what they don't use without running in dependency issues. Repeated installations are preventable via the "hold" mechanism, then.

Cheers,

Steffen