Bump version to 0.6.1

Bump version to 0.6.0

Merge pull request tommarshall#7 from tommarshall/6-fix-imperative-mo…

…od-false-positives

Fix imperative mood false positives

Merge pull request tommarshall#5 from tommarshall/4-handle-autosquash…

…-flags

Handle autosquash flags

Merge pull request tommarshall#3 from tommarshall/add-support-for-col…

…or-override

Add support for color override

Merge pull request tommarshall#2 from tommarshall/ignore-trailing-whi…

…tespace

Ignore trailing whitespace

Set checksum in README for v0.1.0