v0.4.0

• Improve template (#13)
• Refactor CLI commands (#14)
• Add Tester class for testing any completions script (#15)
• Add tester CLI command (#15)
• Add support for middle wildcard for --flag args completions (#16)
• Add COMPLETELY_DEBUG environment setting (#16)
• Allow setting the CONFIG_PATH argument via the COMPLETELY_CONFIG_PATH environment variable (#19)
• Allow setting the SCRIPT_PATH argument via the COMPLETELY_SCRIPT_PATH environment variable (#19)

Full Changelog: v0.3.1...v0.4.0