Combine kdelibs and kleopatra package

• Makefile.am: Remove kdelibs package.
• gpg4win.nsi: Update section management for kdelibs and dbus.
• inst-kleopatra, uninst-kleopatra: Add parts from kdelibs.
• uninst-kdelibs, inst-kdelibs: Removed.

• A combined package is easier to handle from the KDE side of things as the previous distinction was unclear. Kdelibs for example contained also the localization and some parts of kde-runtime. The Kleopatra package now should contain everything in Gpg4Win that is maintained by KDE.