v0.3.1

• Implement a check command to verify that a source tree is formatted. (@thomashoneyman)
• Add directory support instead of always requiring **/*.purs style globs. (@natefaubion)
• Support / in globs even if the system separator is not /. (@garyb via node-glob-basic).
• Support --config-* flags for precisely controlling expectations around config files. (@natefaubion).