What: Sorting is made to be locale aware

Why: sorting of non-ACII languages does not work correctly, see #349

How:

• contributorsSortLocale option is added to CLI to control which locale is going to be used for alphabetic sorting
• alphabetic sorting is done using String.localeCompare instead of _.sortBy to enable locale aware sorting

Checklist:

• Documentation
• Tests
• Ready to be merged
• Added myself to contributors table

TODOs:

1. husky git hook forces some whitespace changes by running prettier, is that correct?
2. can't find the documentation to add this into, is it meant to do another PR for the website?
3. there is a test for sorting already, is that enough, or should I create a special test for different locale?