* Publish events to Kafka for consumption
* Commit avro idl's for event schemas
* convert client to use github.com/dpkp/kafka-python
* events loaded into clickhouse from Kafka
* remove cruft
* Publish events to Kafka for consumption
* convert client to use github.com/dpkp/kafka-python
* remove cruft
* include kafka migrations
* bugfixes for migrations
* use constants for consistency
* wrap up local migrations
* small fixes
* tune ups
