setting dev version to 0.8.1
setting dev version to 0.8.1

akhilman/cement,datafolklabs/cement,fxstein/cement,fxstein/cement,rjdp/cement,datafolklabs/cement,akhilman/cement,rjdp/cement,fxstein/cement,datafolklabs/cement,rjdp/cement,akhilman/cement