Moved kafka topic creation to external image.
That allows reusing the image from different locations.

Closes #134

Changed buliding of kafka-init image to support
just single argument as marker of parent monasca/kafka
image.

Bumped version of monasca/kafka to ```0.9.0.1-2.11-1.1.0``` from
```0.9.0.1-2.11-1.0.2```.

Remove variant ```-1.0.2``` to disallow overriding it with changes meant for ```1.1.0``` variant.