setup integration test

node_modules/bottleneck/src/redis/blacklist_client.lua

@@ -0,0 +1,8 @@
+local blacklist = ARGV[num_static_argv + 1]
+
+if redis.call('zscore', client_last_seen_key, blacklist) then
+  redis.call('zadd', client_last_seen_key, 0, blacklist)
+end
+
+
+return {}