Job status UI
Add a UI under the settings view that displays information about the jobs status for the current user. The information is extracted from Redis and the status of the most recent jobs (by default last 7 days) is displayed alongside other information in the settings view.
Requires at least FontAwesome 4.5.
result_expires (http://docs.celeryproject.org/en/latest/userguide/configuration.html#result-expires) must be configured to the same value as
UPLOADBYURL_CACHE_DURATION. Otherwise the job status cannot properly be extracted and is shown as pending in the UI.
Needs to be merged after !56 (merged)