v0.5.2

Added

• halt/2 optionally accepts a success: true flag, allowing the command to halt early
  successfully. (#16)

v0.5.1

Fixed

• import_deps: [:commandex] in .formatter.exs works again. (#15)

v0.5.0

Added

• run/0 function for commands that don't define any parameters.

Changed

• Raise ArgumentError if an invalid pipeline is defined.

v0.4.1

• Set false parameter correctly when given a Map of params. Was previously
  evaluating to nil.