Increase HTTP timeout

We have some clients that are on slow connections that have trouble
uploading large images due to timeout, and receive a “Guru Meditation”
from Varnish that it could not fetch.

cmd/camper/main.go

@@ -36,8 +36,8 @@ func main() {
 	srv := http.Server{
 		Addr:         ":8080",
 		Handler:      handler,
-		ReadTimeout:  5 * time.Second,
-		WriteTimeout: 10 * time.Second,
+		ReadTimeout:  60 * time.Second,
+		WriteTimeout: 60 * time.Second,
 		IdleTimeout:  2 * time.Minute,
 	}