Auto merge of #1605 - joshleeb:update-itertools-log, r=carols10cents

Update itertools to 0.7.0 and log to 0.4

This PR updates dependency crates `itertools` to 0.7.0 and `log` to 0.4.

Ref. #1265

Author: bors

Cargo.lock

@@ -40,7 +40,7 @@ base64 = "0.9"
 
 openssl = "0.10.13"
 oauth2 = "0.3"
-log = "0.3"
+log = "0.4"
 env_logger = "0.5"
 hex = "0.3"
 htmlescape = "0.3.1"
@@ -57,7 +57,7 @@ chrono = { version = "0.4.0", features = ["serde"] }
 comrak = { version = "0.2.3", default-features = false }
 ammonia = "1.0.0"
 docopt = "0.8.1"
-itertools = "0.6.0"
+itertools = "0.7.0"
 scheduled-thread-pool = "0.2.0"
 derive_deref = "1.0.0"
 reqwest = "0.9.1"