Current mapping of tasks statuses to groups/colors:
1. 'started', 'sent', 'rescheduled' - 'inProgress' group - yellow color
2. 'succeeded' - 'succeeded' group - green color
3. 'failed' - 'failed' group - red color
There are more statuses available - task states are defined in https://github.com/cloudify-cosmo/cloudify-common/blob/master/cloudify/constants.py#L107-L118
We can either:
1. Modify our inProgress state's group to contain not only 'started', 'sent', 'rescheduled', but also 'sending' and 'response-sent'.
2. Treat all states which are not equal to succeeded (green), failed (red) as inProgress (yellow).