cleaner impl of KateDocument::createDigest()
cleaner impl of KateDocument::createDigest()

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