Release 1.2.3

* Do not use implicitly nullable parameters

Release 1.2.2

* [#18](#18): Tokenizer fails on protobuf metadata files

* [#13](#13): Fatal error

  when tokenizing files that contain only a single empty line

Release 1.2.0

Release 1.1.3

Release 1.1.2

Release 1.1.1

Release 1.1.0

- Allow use of custom XML namespace for serialization

Release 1.0.0