Update futures-state-stream

Author: sfackler

tokio-postgres/Cargo.toml

@@ -42,7 +42,7 @@ with-openssl = ["tokio-openssl", "openssl"]
 bytes = "0.4"
 fallible-iterator = "0.1.3"
 futures = "0.1.7"
-futures-state-stream = "0.1"
+futures-state-stream = "0.2"
 postgres-protocol = { version = "0.3.0", path = "../postgres-protocol" }
 postgres-shared = { version = "0.4.0", path = "../postgres-shared" }
 tokio-core = "0.1"