Update frameworks and add KCompletion
* configure.ac: Add Kcompletion as KDEPKG * packages/packages.current: Update KDE Frameworks. Add KCompletion. * src/config.nsi.in: Add KCompletion defines. * src/inst-kcompletion.nsi, src/uninst-kcompletion.nsi: New. * src/inst-sections.nsi: Add sections for KCompletion.