[Squad-dev] squad 1.9 release

Hi,

This 1.9 release really fixes linux-log-parser plugin, adds badges for builds and fixes bugs discovered when using squad-client. Also we made "job_id" optional when submitting test results through the api.

Complete list of changes going in:

* core: * api: add status to testrun * data: handle null test result * model: remove project reference to metric threshold * tasks: make "job_id" optional * celery: avoid crash when no broker is configured * doc: fix python example for submissions * frontend: add badge for build * plugins: linux_log_parser: run plugin for testruns * settings: run tasks when there is no broker

Cheers, Charles