Ability to Soft Delete Stale Bugs from elastic-recheck

Add a resolved_at attribute in the query yaml files
that can be used to mark when  a bug has been
fixed or does not occur any more. This can help us
re-enable bugs quickly when we see them again.

Change-Id: I7af7ce9417eec5ff9ecc2487a920ff9d1286a714
Fix the legend in the e-r page

screen.css has a table entry which screws up the legend in the
charts, overriding that so FAILURE/SUCCESS legend does not spill
over to the left of the chart and shows up right the right top
corner.

Change-Id: I67f71ec114c425ef3327a96c46a2b3c307b06073
Merge "Ability to Soft Delete Stale Bugs from elastic-recheck"
Merge "Fix the legend in the e-r page"