Picocli 3.0.0-alpha-2

The picocli community is pleased to announce picocli 3.0.0-alpha-2.

This release includes some bug fixes and small enhancements. See 3.0.0-alpha-1 for recent functional changes.

This is the twenty-second public release.
Picocli follows semantic versioning.

Fixed issues

[#312] Enhancement and API change: Remove AbstractSimpleParseResultHandler class and parseWithSimpleHandlers method.
[#311] Enhancement and API change: Simplify parseWithHandlers: removed prototypeReturnValue parameter.
[#307] Enhancement: Provide CommandLine.usage(PrintWriter) method for testing and to facilitate GROOVY-8520 migration from commons-cli to picocli.
[#306] Enhancement: Support generating autocompletion scripts for non-public @command classes. Thanks to cbeams for the request.
[#308] Enhancement: Provide API to disallow POSIX clustered short options.
[#310] Enhancement: PicocliBaseScript should follow conventions for stdout and stderr: requested help to stdout, invalid input usage help to stderr.
[#309] Bugfix: Tests were failing on environments that support ANSI colors.

[#311] API change from 3.0.0-alpha-1: the parseWithHandlers methods signature changed: removed the prototypeReturnValue parameter.
[#312] API change from 3.0.0-alpha-1: Remove AbstractSimpleParseResultHandler class and parseWithSimpleHandlers method.