Add metadata about the QMake and CMake packages installed by this framework and remove Links from README.md

Also, a better header and a correction about where module-specific
settings should go.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
techbase wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://community.kde.org/Frameworks/GitOldHistory

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, kdelibs frameworks branch, at commit
162066dbbecde401a7347a1cff4fe72a9c919f58