onnx 0.0.3

• Added rmarkdown to suggests.
• Fixed CRAN check note on LazyData.

onnx 0.0.2

• Updated API documentations and links.
• Added tutorial for creating ONNX protobufs.
• Added tutorial for loading and running an ONNX model.
• More consistent maker and checker functions.

onnx 0.0.1

• First release which includes basic functionalities of ONNX.