changed metric value test to ParseFloat from ParseInt
changed metric value test to ParseFloat from ParseInt

piosz/heapster,krzyzacy/heapster,krzyzacy/heapster,adfin/statster,andyxning/heapster,johanneswuerbach/heapster,huangyuqi/heapster,andyxning/heapster,bruceauyeung/heapster,piosz/heapster,adfin/statster,bluebreezecf/heapster,whuwxl/heapster,Stackdriver/heapster,burmanm/heapster,bluebreezecf/heapster,AlmogBaku/heapster,johanneswuerbach/heapster,huangyuqi/heapster,AlmogBaku/heapster,luxas/heapster,whuwxl/heapster,burmanm/heapster,Stackdriver/heapster,bruceauyeung/heapster,luxas/heapster