Cache server jobs on a per-view basis
Gracefully handle jobs that are disabled or never run
Add CSS support for disabled jobs
in place merge job stats
Update rollup for aborted and disabled jobs
Only display non-zero sums in stats rollup
Set job health to 0 when no health exists
Handle jobs that have a status of not_run

This just colors the job as the same color as disabled until we pick out
more specific colors.