cache errors (500, 404, etc.) when forwarding, not just timeouts
Merge pull request #499 from dimagi/cache-errors-forwarding

cache errors (500, 404, etc.) when forwarding, not just timeouts
reset certain properties when copying a domain from the exchange
Merge pull request #500 from dimagi/remove

reset certain properties when copying a domain from the exchange
Merge pull request #497 from dimagi/viz

add cumulative graphs for orgs; refactor ui for orgs viz
Merge branch 'master' into user-charts