add --deb-user & --deb-group switch to fpm in deb-build.sh
add --deb-user & --deb-group switch to fpm in deb-build.sh

In the deb-build.sh script for building graphite-api with fpm, it was
running sudo. This is unnecessary and the same can be achieved using
fpm's --deb-user and --deb-group switch

tpeng/graphite-api,michaelrice/graphite-api,bogus-py/graphite-api,hubrick/graphite-api,alphapigger/graphite-api,rackerlabs/graphite-api,brutasse/graphite-api,michaelrice/graphite-api,GeorgeJahad/graphite-api,winguru/graphite-api,absalon-james/graphite-api,winguru/graphite-api,bogus-py/graphite-api,hubrick/graphite-api,GeorgeJahad/graphite-api,alphapigger/graphite-api,raintank/graphite-api,raintank/graphite-api,absalon-james/graphite-api,tpeng/graphite-api,brutasse/graphite-api,rackerlabs/graphite-api,raintank/graphite-api,Knewton/graphite-api,Knewton/graphite-api