Frameworks based www-client/rekonq, kde-base/libkcddb, app-cdr/k3b

* move rekonq-9999 to 4.9999
* create new rekonq-9999 ebuild pulling from frameworks branch
* create new {k3b,libkcddb}-9999 ebuilds pulling from kf5 branch

rekonq has had a frameworks branch for some time, though doesn't *quite* build right now.
libkcddb did build fine after disabling tests, k3b as well