make delete/change commands + join line command work with a visual selection
make delete/change commands + join line command work with a visual selection

svn path=/trunk/KDE/kdelibs/kate/; revision=846646

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