add save option to dir_diff task. fixed #3
version 0.0.5
add ref option to dir_diff task
version 0.0.6
create file for remarking its removal to dir_diff task save option. fixed #4
version 0.0.7
version 0.0.8
rebuild cassettes for dir_diff
add a file just for create empty directory for test
fix empty.txt location
rebuild cassettes for dir_diff ref