make page up/down work in normal mode, too
make page up/down work in normal mode, too

BUG: 178502

svn path=/trunk/KDE/kdelibs/kate/; revision=900457

jfmcarreira/kate,hlamer/kate,hlamer/kate,hlamer/kate,DickJ/kate,hlamer/kate,hlamer/kate,DickJ/kate,hlamer/kate,cmacq2/kate,cmacq2/kate,jfmcarreira/kate,hlamer/kate,sandsmark/kate,jfmcarreira/kate,DickJ/kate,hlamer/kate,sandsmark/kate,DickJ/kate,cmacq2/kate,hlamer/kate,sandsmark/kate,sandsmark/kate,hlamer/kate