tensorflow-io 0.2.0 release

[yongtang]

This PR is for tensorflow-io 0.2.0 release

Signed-off-by: Yong Tang yong.tang.github@outlook.com

[yongtang]

/cc @terrytangyuan I think some version strings in R-package will also be needed, could you point me to the strings that need to be updated?

[terrytangyuan]

@yongtang I am working on preparing v0.2.0 release for R package, which includes version bump and some other fixes/enhancements. I’ll open up a PR when it’s ready. Please focus on Python package release for this PR.

[yongtang]

@terrytangyuan Thanks. I will put this PR on hold.

[terrytangyuan]

I just submitted a PR #67 for v0.1.0 release after receiving CRAN's first round of review.

This is taking much longer than I originally expected due to new year schedule + reviewers' nit picks. I propose that we can go ahead and create release tags on Github whenever the Python package is ready without waiting for R package release. CRAN has its own archiving mechanism (for example, here are the archives for reticulate package) so I don't think Github releases would affect R users that much.

@yongtang What do you think?

[yongtang]

@terrytangyuan Thanks, that makes sense. We could decouple the release of python and R. We could even have a special tag (e.g., something like0.1.0-r) if needed.

[yongtang]

I think we are almost there for 0.2.0 release. Only need to update README.md before the tag.

Also cc @BryanCutler

[BryanCutler]

I'm working on the README updates now, I'll have a PR soon

[yongtang]

/cc @terrytangyuan @BryanCutler Just rebased and updated. I think we should be ready for 0.2.0.

@BryanCutler I also added you to the PyPI.org project so you should have access. Once the PR is merged then we could just tag and release 0.2.0.

[terrytangyuan]

Looks good!