1.6

• Revert renaming of API method names
• Use cache version as string instead of number
• Cover caching with tests
• Reduce the PHP test matrix to the latest versions of PHP 5, 7 and 8
• Check via GitHub Action if the API documentation is up-to-date
• Update API reference
• Fix API documentation of an array as parameter default value
• Satisfy StyleCI
• Commit changed files of entire working tree in build context
• Support for generation of API documentation in README.md
• Add words with reduced hyphenation to collection from PR #26
• Satisfy StyleCI
• Add test for collection of words with reduced hyphenation
• Refactor splitWord(), splitWords() and splitText() of Syllable class
• Remove @Covers annotation in tests
• Added splitWords and various code quality improvements
• Update the README.md copyright claim on release
• Skip GitHub Action scheduler in forks and run tests only in PR context
• Allow GitHub Action "Update languages" workflow to bypass reviews
• Use German orthography from 2006 as standard orthography