mwolff:     opt: use non-detaching .at() instead of operator[]
mwolff:
    opt: use non-detaching .at() instead of operator[]

svn path=/trunk/KDE/kdelibs/kate/; revision=1193680

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