* Bump version to 1.7.1 * Gracefully handle creating a LibertineContainer object when the container backend is unavailable. * Update libertine xmir components to not depend on container backends. (LP: #1671938) * Catch all errors and gracefully shutdown libertined. (LP: #1671009) * Fix method call from ContainerControl d-bus to interfaces. * Update signal handlers in test_libertine_service to reflect new API. * Inject client for accessing ContainerControl within containers. * Rearchitect libertine service python backend for simpler access to running tasks. (LP: #1669091) * Ignore completions from dependencies during snapcraft build.