[kde-base/kdelibs] Use KDE/4.14 branch

Package-Manager: portage-2.2.10
[kde-base] Remove KDE/4.13 stable branch

KDE SC 4.13.3 was the last release in 4.13 series.

Package-Manager: portage-2.2.10
[kde-base/kactivities] Remove empty

Package-Manager: portage-2.2.10
[kde-base/contactthemeeditor] Remove empty

Package-Manager: portage-2.2.10
[sets] Fix kdelibs, kdepim
[Documentation] Update keywords