Add changelog entry for 1.0.13
Handle API errors gracefully during Kafka topic creation.
# Changelog
+## [1.0.13] - 2019-08-12
+Handle API errors gracefully during Kafka topic creation.
+
## [1.0.12] - 2019-08-08
Always wait for VPC state to become active before treating it as created.
Mark more URIs as sensitive.
