Proto commits in zhengying-liu/autodl_starting_kit_stable

These 4 commits are when the Protocol Buffers files have changed:

Commit:20b5739
Author:Zhengying Liu

v20190908: algebraic operations of learning curves; more options for plotting; reduce time variance in ingestion; more general data format in dataset.py

The documentation is generated from this commit.

Commit:e1ff5dc
Author:Zhengying Liu

Enable customized num_channels

Commit:dbe994a
Author:Zhengying Liu

@Tensor3Dto4D: Now each example in datasets has an additional dimension: channels. 3-D tensors become 4-D tensors.

Commit:f5db678
Author:Zhengying Liu

First version on 24 Oct 2018