0.5.0

Enhancements

• The swift- prefix for versions is now optional.

• swiftenv install now has a --list option:

  $ swiftenv install --list

• swiftenv install is capable of building Swift 2.2-dev from source.

• swiftenv install now takes URLs to a Swift binary package.

• swiftenv install was updated to use the new binary swift.org release URLs.

Bug Fixes

• Fixes an issue where using shims would suppress error messages when the
  configured version was not installed.
• Allows the completion to work when using swiftenv installed from Homebrew.