v0.4-lw

$v0.4-lw

add contributing.md file, add exit status message with useful stack i…

v0.3-lw

$v0.3-lw

format errors. handle empty change set error better

v0.2-lw

$v0.2-lw

add overwrite flag, add error bar whenever an error occus

v0.1-lw

$v0.1-lw

add asciinema to readme