Improvements in various areas #149
- Performance improvements in all methods of public API (up to x2 faster)
  - extractHostname: will now avoid lower-casing the result in some cases
  - extractHostname: handles single or triple '/' after protocol
  - extractHostname: has fast-path for validation of common protocols (e.g. https)
  - isProbablyIpv4: performs first quick check on length of hostname
  - isProbablyIpv6: performs first quick check on length of hostname
  - isValidHostname: make use of charCodeAt instead of codePointAt
  - lookupInTrie: makes use of Trie with more stable structure (faster)
  - lookupInTrie: lazily allocate memory for result
  - suffixLookup: uses fast-path for most common suffixes (massive speed-up)
  - suffixLookup: does not allocate memory for result anymore
  - setDefaults: fast-path in case no argument was provided
  - getSubdomain: fast-path if subdomain is empty
- Add more options to fine-tune behavior and performance
  - detectIp allows to disable IP check
  - mixedInput allows to specify if we expect a mix of URLs and hostnames as input. If only hostnames are expected then extractHostname can be set to false to speed-up parsing. If only URLs are expected then mixedInputs can be set to false. The mixedInputs is only a hint and will not change the behavior of the library.
  - validateHostname can be set to false to disable validation and speed-up processing further.
- Check that input is string before parsing
- Fix support for reserved keywords in hostnames
- Add tests and bring back coverage to 100%
- Minified bundle is now also tested with the same suite
- Migrate utils scripts from bin/ folder to TypeScript
- Add small tldts cli which can be used to parse URLs
- Update README with more accurate information