GitLab

There is no `data` directory, these instructions work without this line.

Added correct link to blogpost
Changed Sentosa to Setosa in a couple of places

* Split iris data

* move shared code to iris_data.py

* add minimal csv example

* remove unused pandas import

* Use sparse softmax loss to avoid warning

* Add simplifications requested by get_started writers.

* More cleanup

* Clearer names and comments

* Use the keys from the train dict

* Use regular input_fn pattern

* Add comments to input functions

Added assert for TensorFlow r1.4 since tf.data is required.

+ Removed try-except on `import pandas`, pandas is no longer optional here.