Release 0.54

• Prevent the Command Line Interface from hanging when the server goes away.

• Add Example HTTP connector example-http that reads CSV data via HTTP. The connector requires a metadata URI that returns a JSON document describing the table metadata and the CSV files to read.

  Its primary purpose is to serve as an example of how to write a connector, but it can also be used directly. Create etc/catalog/example.properties with the following contents to mount the connector as the example catalog:

• Verify JVM requirements on startup.

• Log an error when the JVM code cache is full.