3.2.2
------------- This version fixes some small documentation issues. Total issues resolved: 2 - [194: Fix `Builder#sign()` docblock to allow Key|string on `$key`](https://github.com/lcobucci/jwt/pull/194) thanks to @msvrtan - [195: Fix documentation to have the correct claim name (`exp` instead of `nbf`)](https://github.com/lcobucci/jwt/pull/195) thanks to @carlnordenfelt