[web] When $max_graphs is > 0, cluster view is supposed to show up to $max_graphs graphs. This previously didn't work with reports, since they don't have current values to display. This commit fixes that for metric reports by showing "N/A" for hosts that have been cropped off.  If metric columns ($hostcols) is set to 0, the $max_graphs option is ignored.
[web] When $max_graphs is > 0, cluster view is supposed to show up to $max_graphs graphs.
This previously didn't work with reports, since they don't have current values to display.
This commit fixes that for metric reports by showing "N/A" for hosts that have been cropped
off.  If metric columns ($hostcols) is set to 0, the $max_graphs option is ignored.


hinesmr/monitor-core,dmourati/monitor-core,dmourati/monitor-core,mjzhou/monitor-core,NoodlesNZ/monitor-core,ganglia/monitor-core,fastly/monitor-core,mjzhou/monitor-core,dmourati/monitor-core,torkelsson/monitor-core,hinesmr/monitor-core,fastly/monitor-core,lawrencewu/monitor-core,sdgdsffdsfff/monitor-core,mjzhou/monitor-core,fastly/monitor-core,ganglia/monitor-core,ganglia/monitor-core,ganglia/monitor-core,phreakocious/monitor-core,torkelsson/monitor-core,phreakocious/monitor-core,lawrencewu/monitor-core,sdgdsffdsfff/monitor-core,sdgdsffdsfff/monitor-core,NoodlesNZ/monitor-core,lawrencewu/monitor-core,fastly/monitor-core,NoodlesNZ/monitor-core,phreakocious/monitor-core,ganglia/monitor-core,phreakocious/monitor-core,sdgdsffdsfff/monitor-core,phreakocious/monitor-core,hinesmr/monitor-core,mjzhou/monitor-core,sdgdsffdsfff/monitor-core,fastly/monitor-core,NoodlesNZ/monitor-core,sdgdsffdsfff/monitor-core,dmourati/monitor-core,fastly/monitor-core,dmourati/monitor-core,dmourati/monitor-core,phreakocious/monitor-core,lawrencewu/monitor-core,lawrencewu/monitor-core,hinesmr/monitor-core,torkelsson/monitor-core,torkelsson/monitor-core,ganglia/monitor-core,NoodlesNZ/monitor-core,NoodlesNZ/monitor-core,hinesmr/monitor-core,mjzhou/monitor-core,ganglia/monitor-core,torkelsson/monitor-core,fastly/monitor-core,NoodlesNZ/monitor-core,torkelsson/monitor-core,sdgdsffdsfff/monitor-core,lawrencewu/monitor-core,lawrencewu/monitor-core,phreakocious/monitor-core,ganglia/monitor-core,torkelsson/monitor-core,mjzhou/monitor-core,mjzhou/monitor-core