v0.9.1

• Updates
  • Improve detection of invalid applications being passed in the :init and
    :last options.
  • Fall back to a reasonable default when trying to get application modes from
    the release options. This fixes an exception when building the release.
  • Support release configuration via the release options in a project's
    mix.exs. Add a :shoehorn key to the release parameters to set :init,
    :last or the :exxtra_dependencies options.