fix bugs by adding const
fix bugs by adding const

gogartom/caffe-textmaps,gnina/gnina,gnina/gnina,longjon/caffe,wangg12/caffe,tackgeun/caffe,CZCV/s-dilation-caffe,gogartom/caffe-textmaps,gnina/gnina,gogartom/caffe-textmaps,tackgeun/caffe,gnina/gnina,CZCV/s-dilation-caffe,wangg12/caffe,wangg12/caffe,longjon/caffe,CZCV/s-dilation-caffe,longjon/caffe,gogartom/caffe-textmaps,wangg12/caffe,longjon/caffe,tackgeun/caffe,gnina/gnina,gnina/gnina,tackgeun/caffe,CZCV/s-dilation-caffe