Java codegen

• If the DAR source cannot be read, the application crashes and prints an error report.

Daml Assistant

• Java and Scala codegen is now integrated with the assistant and distributed with the SDK. It can be run via daml codegen. You can find more information in the `Daml Assistant documentation https://docs.daml.com/tools/assistant.html.

Daml Compiler

• Fix bug with qualified imports of generic templates.

Ledger

• Upgraded ledger-api server H2 Database version to 1.4.199 with stability fixes including one to the merge statement.

Daml Integration Kit

• One more test case added. Transaction service tests are not multi-node aware.
• Semantic tests now ensure synchronization across participants when running in a multi-node setup.