Version 0.8.0

  * Add 'repository-type' value to task manifest and rename 'repository' value
    to 'repository-url'.

  * Make communication with QEMU monitor more robust.

  * Disable audio output with QEMU_AUDIO_DRV=none.

Version 0.7.0

  * Assign "step id" to each step in "worker script". This is used to support
    step-specific command options. See bbot manual for details.

  * Support for controller request retries (--request-retries) and connection
    timeout (--connect-timeout) in bbot agent.

  * Increase default bootstrap timeout to 20 minutes.

Version 0.6.0

  * Support for installation testing (install, test installed, and uninstall
    operations). See the bbot manual for details.

  * Support for bbot agent authentication with controllers.

  * Support for warning detection regex in task manifests.

  * Multiple virtual machine management and communication robustness
    improvements.

Version 0.5.0

  * First public release.