Fix query error notification in tabular view.
Fix query error notification in tabular view.

Instead of "Unsupported value type" when type="error", the delivered
error message should be shown.

cit-lab/prometheus,brancz/prometheus,kangwoo/prometheus,brancz/prometheus,adamron1/prometheus,jimmidyson/prometheus,kzittritsch/prometheus,prometheus/prometheus,abhishekamralkar/prometheus,laushinka/prometheus,jmcfarlane/prometheus,dpatel06/prometheus,Gouthamve/prometheus,smyrman/prometheus,ton31337/prometheus,mtanda/prometheus,keegancsmith/prometheus,jimmidyson/prometheus,justintung/prometheus,Stackdriver/stackdriver-prometheus,prometheus/prometheus,slok/prometheus,Gouthamve/prometheus,prasincs/prometheus,Stackdriver/stackdriver-prometheus,gcnonato/prometheus,msiebuhr/prometheus,dmilstein/prometheus,justintung/prometheus,hustbill/prometheus,dpatel06/prometheus,RobertKielty/prometheus,msiebuhr/prometheus,eliothedeman/prometheus,ton31337/prometheus,alileza/prometheus,keegancsmith/prometheus,cit-lab/prometheus,tattsun/prometheus,robbiet480/prometheus,wxdublin/prometheus,PrFalken/prometheus,datajet-io/prometheus,robbiet480/prometheus,q3k/prometheus,hustbill/prometheus,Gouthamve/prometheus,prasincs/prometheus,GoogleCloudPlatform/prometheus,AlekSi/prometheus,abhishekamralkar/prometheus,agaoglu/prometheus,amorken/prometheus,wndhydrnt/prometheus,JavierZunzunegui/prometheus,kangwoo/prometheus,hustbill/prometheus,flier/prometheus,sudhi-vm/prometheus,gesellix/prometheus,SaltedMan/prometheus-annotated,Colstuwjx/prometheus,flier/prometheus,jimmidyson/prometheus,datajet-io/prometheus,Stackdriver/stackdriver-prometheus,amorken/prometheus,sudhi-vm/prometheus,rajthilakmca/prometheus,rajthilakmca/prometheus,gcnonato/prometheus,fabric8io/prometheus,thachmai/prometheus,Colstuwjx/prometheus,fabxc/prometheus,rajthilakmca/prometheus,tattsun/prometheus,brian-brazil/prometheus,jmcfarlane/prometheus,tattsun/prometheus,dsymonds/prometheus,AlekSi/prometheus,tomwilkie/prometheus,msiebuhr/prometheus,slok/prometheus,brian-brazil/prometheus,gcnonato/prometheus,eliothedeman/prometheus,jbdalido/prometheus,dmilstein/prometheus,fabric8io/prometheus,gcnonato/prometheus,mrwacky42/prometheus,gottwald/prometheus,wxdublin/prometheus,mtanda/prometheus,tomwilkie/prometheus,fabxc/prometheus,jbdalido/prometheus,jmcfarlane/prometheus,amorken/prometheus,SaltedMan/prometheus-annotated,dalanlan/prometheus,abhishekamralkar/prometheus,thachmai/prometheus,AlekSi/prometheus,wndhydrnt/prometheus,flier/prometheus,JavierZunzunegui/prometheus,wndhydrnt/prometheus,mrwacky42/prometheus,eliothedeman/prometheus,yanghongkjxy/prometheus,agaoglu/prometheus,gesellix/prometheus,brancz/prometheus,kangwoo/prometheus,gottwald/prometheus,RobertKielty/prometheus,ton31337/prometheus,thachmai/prometheus,robbiet480/prometheus,Stackdriver/stackdriver-prometheus,dmilstein/prometheus,kzittritsch/prometheus,wrouesnel/prometheus,dalanlan/prometheus,bluecmd/prometheus,alileza/prometheus,brancz/prometheus,agaoglu/prometheus,gesellix/prometheus,GoogleCloudPlatform/prometheus,kzittritsch/prometheus,sudhi-vm/prometheus,Colstuwjx/prometheus,prometheus/prometheus,bluecmd/prometheus,tomwilkie/prometheus,rajthilakmca/prometheus,brian-brazil/prometheus,SaltedMan/prometheus-annotated,RobertKielty/prometheus,wrouesnel/prometheus,amorken/prometheus,JavierZunzunegui/prometheus,gottwald/prometheus,dsymonds/prometheus,iksaif/prometheus,PrFalken/prometheus,dsymonds/prometheus,dpatel06/prometheus,keegancsmith/prometheus,justintung/prometheus,iksaif/prometheus,adamron1/prometheus,fabric8io/prometheus,msiebuhr/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,jbdalido/prometheus,Dieterbe/prometheus,dln/prometheus,slok/prometheus,alileza/prometheus,PrFalken/prometheus,yanghongkjxy/prometheus,laushinka/prometheus,laushinka/prometheus,kzittritsch/prometheus,nicr9/prometheus,robbiet480/prometheus,Colstuwjx/prometheus,GoogleCloudPlatform/prometheus,Gouthamve/prometheus,JavierZunzunegui/prometheus,q3k/prometheus,justintung/prometheus,cit-lab/prometheus,tattsun/prometheus,dsymonds/prometheus,fabxc/prometheus,alileza/prometheus,gottwald/prometheus,AlekSi/prometheus,dln/prometheus,adamron1/prometheus,dln/prometheus,nicr9/prometheus,keegancsmith/prometheus,iksaif/prometheus,jmcfarlane/prometheus,mrwacky42/prometheus,thachmai/prometheus,smyrman/prometheus,smyrman/prometheus,tomwilkie/prometheus,mtanda/prometheus,sudhi-vm/prometheus,datajet-io/prometheus,q3k/prometheus,smyrman/prometheus,dmilstein/prometheus,Conorbro/prometheus,wrouesnel/prometheus,SaltedMan/prometheus-annotated,PrFalken/prometheus,bluecmd/prometheus,datajet-io/prometheus,nicr9/prometheus,Dieterbe/prometheus,gesellix/prometheus,fabric8io/prometheus,Conorbro/prometheus,prasincs/prometheus,q3k/prometheus,prometheus/prometheus,trigrass2/prometheus,fabxc/prometheus,wrouesnel/prometheus,RobertKielty/prometheus,trigrass2/prometheus,trigrass2/prometheus,iksaif/prometheus,Dieterbe/prometheus,bluecmd/prometheus,kangwoo/prometheus,laushinka/prometheus,cit-lab/prometheus,yanghongkjxy/prometheus,wxdublin/prometheus,abhishekamralkar/prometheus,dalanlan/prometheus,jbdalido/prometheus,eliothedeman/prometheus,trigrass2/prometheus,agaoglu/prometheus,Conorbro/prometheus,Conorbro/prometheus,mtanda/prometheus,dln/prometheus,hustbill/prometheus,keegancsmith/prometheus,ton31337/prometheus,GoogleCloudPlatform/prometheus,adamron1/prometheus,yanghongkjxy/prometheus,slok/prometheus,alileza/prometheus,prasincs/prometheus