Changes
- Adds an end-to-end test that depends upon `grakn-kglib` from the PyPi test server
- Splits out example from main source
-Updates READMEs, now there is one for the KGCN example, one for KGCN general usage, and one for the whole repo
- Updates some example schema used for the Vienna meetup 29/01/2019
Addresses 35 36 37 31 30
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- A local end-to-end test was helpful for debugging CI, but shouldn't be needed further.
- The end-to-end test source was being included twice, it should only be included in the test.
- Make clear that this requires `grakn-kglib` installed from PyPi
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- Corrects applicable Python versions for PyPi deployment
- Corrects installation instructions, and makes the `animaltrade` example requirements reference the general KGCN requirements
- Fixes the broken link to the `animaltrade` example in the KGCN README
- Prints warnings at runtime to warn the user that the TensorFlow Hub module used may take some time to download, so that they know the process hasn't hung
Addresses 37 38