Failure / Recent Activity display

[irskep]

We should add to the web API as well as some option to tronview, to show recent activity.

Mostly I'm interested in being able to identify bad situations at a glance, which get's more difficult as the number of jobs go up.

Bad things that I'd like to be aware of:

• Job/Action failures (unknown or bad exit status's)
• Job Run's being queued because the previous hasn't completed yet.
• Stderr output from jobs

Let's add the option 'tronview --warn' which will show a general log of warnings. It should support drilling down and seeing a log per job or action as well.

The option -n should be respected as well.

0.1.10 has a start to completing this feature. But I think we'll need a bit more to get what I want.

The idea is for some administrator to be able to take a look at the output from this feature and very quickly find out if there has been any issues recently.

Let's help resolve this with the following:

• The output should be chronological rather than grouped by job
• There should be a simple web api call for this, less done in the client
• The output should be more log like rather than re-using display. I want to know the time and date, the job or action involved, and what happened.
• Use of the -n option should show the most recent n events.

Copied from issue #46 on rhettg's repo

[dnephin]

A lot of the warn output should be removed as well