2.3.1 2022-01-14 Release
        - Improve script handling of broken data
        - Improve handling of unknown header types
        - Check for valid sigles to avoid broken directories
        - Introduce exclusivity for inline tokens handling.
        - Use single dash for STDIN.
        - Update KorAP-Tokenizer to v2.2.2 (single quote, "du." bug fixes)

2.2.0 2021-08-26 Release
        - Remove unnecessary branch in recursive call
        - Support inline-structures parameter
        - Introduce --base-foundry, --data-file, and --header-file parameters
        - Introduce --tokens-file parameter
        - Introduce --skip-inline-tokens parameter
        - Minor cleanups and improvements
        - Introduce --skip-inline-tags parameter
        - Introduce KorAP::XML::TEI::Inline class
        - Introduce --skip-inline-token-annotations parameter
        - Deprecate KORAPXMLTEI_INLINE environment variable
          in favor of --skip-inline-token-annotations

1.0.0 2021-02-18 Release
        - -s option added that uses sentence boundaries
          provided by the KorAP tokenizer (-tk)
        - Tokenizer invocation comments removed from KorAP XML output
        - Indentation of </span> tags fixed
        - Character entities used in DeReKo are automatically
          replaced by their corresponding characters
        - Resources defined in Makefile
        - Fixed possible IO deadlock with KorAP tokenizer
        - Simplified debugging by combining with X::C::T line numbers
        - Support inline-tokens parameter
        - Move verbose code documentation to trailing
          script section

0.03 2021-01-12
        - Update KorAP-Tokenizer to released 2.0 version
        - Improve test suite for recent version
          of Mojolicious.

0.02 2020-11-27
        - Update KorAP-Tokenizer to v2.0.0.
        - Switch input encoding based on XML
          processing instruction.
        - Fix handling of UTF-8 in sigles.

0.01 2020-09-28
        - Initial release to GitHub.