Added byobu to default installed list.
Added byobu to default installed list.

ruige123456/5-25,ossianpe/docker-build-centos,retroconduct/ubuntu,the1sky/ubuntu,rednut/docker-ubuntu,Christopher-Chopin/ubuntu,mj19910923/dockerfile.ubuntu.base,liujuncheng/dockerfile-android,pdeslaur/ubuntu,dockerfile/ubuntu,jbng/nodejs-es,tianzhidao28/ubuntu