progress on refactoring storage API and enabling usage of metric contexts in the UI
progress on refactoring storage API and enabling usage of metric contexts in the UI

pu239ppy/carbon,piotr1212/carbon,criteo-forks/carbon,iain-buclaw-sociomantic/carbon,johnseekins/carbon,iain-buclaw-sociomantic/carbon,criteo-forks/carbon,protochron/carbon,piotr1212/carbon,obfuscurity/carbon,JeanFred/carbon,johnseekins/carbon,pu239ppy/carbon,benburry/carbon,graphite-server/carbon,protochron/carbon,kharandziuk/carbon,obfuscurity/carbon,benburry/carbon,pratX/carbon,graphite-project/carbon,deniszh/carbon,cbowman0/carbon,krux/carbon,xadjmerripen/carbon,xadjmerripen/carbon,deniszh/carbon,kharandziuk/carbon,mleinart/carbon,JeanFred/carbon,mleinart/carbon,pratX/carbon,graphite-project/carbon,lyft/carbon,graphite-server/carbon,krux/carbon,lyft/carbon,cbowman0/carbon