Merge pull request #247 from gpengzhi/bump-version

Bump version to v0.2.4

Update setup.py to v0.2.3

Enable PyPI installation

* Fix or toggle off warnings (mostly TF deprecation warnings)
* Update dependency to TF>=1.10.0
* Upgrade to version v0.2.2

Merge pull request #179 from TomNong/connector-update

Fix *StochasticConnector when `transform=False`

Merge branch 'TomNong-data-consistance-refine'

Merge pull request #72 from tanyuqian/master

fixed a typo in examples/seq2seq_exposure_bias/README.md.

Fixes: #71