Copy labels and rount timestamps to seconds.
Copy labels and rount timestamps to seconds.

The lack of label copies was leading to unexpected duplicates.

Fixes #107.

krzyzacy/heapster,mwielgus/heapster,saad-ali/heapster,afein/heapster,relh/heapster,ravihansa3000/heapster,huangyuqi/heapster,Stackdriver/heapster,aegixx/heapster,dalanlan/heapster,jackzampolin/heapster,taimir/heapster,johanneswuerbach/heapster,taimir/heapster,naxhh/heapster,thucatebay/heapster,johanneswuerbach/heapster,vicki-c/heapster,vishh/heapster-1,a-robinson/heapster,adfin/statster,digideskio/heapster,wulonghui/heapster,lavalamp/heapster,Huawei-PaaS/heapster,naxhh/heapster,Huawei-PaaS/heapster,huangyuqi/heapster,AlmogBaku/heapster,afein/heapster,luxas/heapster,saad-ali/heapster,bluebreezecf/heapster,digideskio/heapster,relh/heapster,nlamirault/heapster,vicki-c/heapster,vishh/heapster-1,skytap/heapster,aegixx/heapster,jimmidyson/heapster,burmanm/heapster,mwringe/heapster,piosz/heapster,mwringe/heapster,mwielgus/heapster,liubog2008/heapster,titilambert/heapster,luxas/heapster,AlmogBaku/heapster,jackzampolin/heapster,jfoy/heapster,lavalamp/heapster,bluebreezecf/heapster,andyxning/heapster,titilambert/heapster,wulonghui/heapster,apeeyush/heapster,whuwxl/heapster,nlamirault/heapster,a-robinson/heapster,krzyzacy/heapster,bruceauyeung/heapster,liubog2008/heapster,piosz/heapster,mdshuai/heapster,adfin/statster,thucatebay/heapster,shilpamayanna/heapster,jszczepkowski/heapster,whuwxl/heapster,bruceauyeung/heapster,liuhewei/heapster,fzu-huang/heapster,fzu-huang/heapster,mdshuai/heapster,liuhewei/heapster,ravihansa3000/heapster,jfoy/heapster,jimmidyson/heapster,saiwl/heapster,saiwl/heapster,Stackdriver/heapster,dalanlan/heapster,shilpamayanna/heapster,apeeyush/heapster,andyxning/heapster,skytap/heapster,jszczepkowski/heapster,burmanm/heapster