v0.4.0

• Enhance CI ans tests
• Replace tslint with eslint
• Enhance documentation and examples
• Change default ignore pattern from /^\../ to /^\./
• Rename error code forbidden_characters to forbidden_character
• Rename error code ignored_files to ignored_file
• Restore malformed_path error
• Throw ignored_file error before trailing_slash
• Drop responseClose event
• Add textual regexp support in options