NR: Add max file and useragent entries we'll show to the params dict

This'll inform the reader that limitations are placed on the results.
diff --git a/server/app/plugins/downloads.py b/server/app/plugins/downloads.py
index 93a0dab..7647784 100644
--- a/server/app/plugins/downloads.py
+++ b/server/app/plugins/downloads.py
@@ -185,6 +185,8 @@
         "project": project,
         "daily_stats_4_tuple": ["utc_epoch", "downloads", "unique_clients", "bytes_transferred",],
         "hosts_tracked": [x["_vhost_"] for x in FIELD_NAMES.values()],
+        "max_hits": MAX_HITS,
+        "max_hits_useragent": MAX_HITS_UA,
     }
 
     # Check if we have a cached result