Improved handling of special characters in parameter names and values (added `quotedValueConverter` option to the parser).
Use `parse()` from `lib/parse.js` and not from `lib/index.js` in tests.
Added `@throws` JSDoc tag to the `parse()` function.
Updated package keywords.
Added filtering support (section 4.1. of the RFC-6690).
`parse()` from `lib/index.js` is now a wrapper with additional functionality for `parse()` from `lib/parse.js`.