Merge topic 'release-0.817.1'

a0cfdfda cargo: prep for 0.817.1
b6587827 cargo: loosen the error-chain dependency
9323c337

 cargo: separate public and private dependencies
Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Brad King <brad.king@kitware.com>
Merge-request: !83

Cargo.toml

 [package]
 name = "gitlab"
-version = "0.817.0"
+version = "0.817.1"
 authors = ["Ben Boeckel <ben.boeckel@kitware.com>"]
 license = "MIT/Apache-2.0"
 description = """
@@ -13,16 +13,17 @@ keywords = ["gitlab", "api"]
 categories = ["web-programming", "api-bindings"]
 
 [dependencies]
-chrono = { version = "~0.3", features = ["serde"] }
-error-chain = "~0.9"
 hyper = { version = "~0.10", default-features = false }
 itertools = "~0.5"
 log = "~0.3"
 reqwest = "~0.4"
-serde = "~0.9"
 serde_derive = "~0.9"
-serde_json = "~0.9"
 url = "^1.4"
 
+chrono = { version = "~0.3", features = ["serde"] }
+error-chain = ">= 0.9, < 0.11"
+serde = "~0.9"
+serde_json = "~0.9"
+
 [features]
 strict = []