feat(lib): update Tokio, bytes, http, h2, and http-body

Cargo.toml

@@ -20,35 +20,28 @@ include = [
 ]
 
 [dependencies]
-bytes = "0.4.6"
-futures-core = "0.3.1"
-futures-channel = "0.3.1"
-futures-util = "0.3.1"
-http = "0.1.15"
-http-body = "=0.2.0-alpha.3"
+bytes = "0.5"
+futures-core = { version = "0.3", default-features = false }
+futures-channel = "0.3"
+futures-util = { version = "0.3", default-features = false }
+http = "0.2"
+http-body = "0.2"
 httparse = "1.0"
-h2 = "=0.2.0-alpha.3"
-iovec = "0.1"
+h2 = "0.2"
 itoa = "0.4.1"
 log = "0.4"
 pin-project = "0.4"
 time = "0.1"
 tower-service = "=0.3.0-alpha.2"
-tokio-executor = "=0.2.0-alpha.6"
-tokio-io = "=0.2.0-alpha.6"
-tokio-sync = "=0.2.0-alpha.6"
+tokio = { version = "0.2", features = ["sync"] }
 want = "0.3"
 
 # Optional
 
 net2 = { version = "0.2.32", optional = true }
-tokio = { version = "=0.2.0-alpha.6", optional = true, default-features = false, features = ["rt-full"] }
-tokio-net = { version = "=0.2.0-alpha.6", optional = true, features = ["tcp"] }
-tokio-timer = { version = "=0.3.0-alpha.6", optional = true }
-
 
 [dev-dependencies]
-futures-util-a19 = { version = "=0.3.0-alpha.19", package = "futures-util-preview" }
+futures-util = { version = "0.3", default-features = false, features = ["alloc"] }
 matches = "0.1"
 num_cpus = "1.0"
 pretty_env_logger = "0.3"
@@ -56,9 +49,8 @@ spmc = "0.3"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
-tokio = "=0.2.0-alpha.6" # using #[tokio::test] attributes
-tokio-fs = "=0.2.0-alpha.6"
-tokio-test = "=0.2.0-alpha.6"
+tokio = { version = "0.2.2", features = ["fs", "macros", "rt-util", "sync", "time", "test-util"] }
+tokio-test = "0.2"
 url = "1.0"
 
 [features]
@@ -68,13 +60,13 @@ default = [
 ]
 runtime = [
     "tcp",
-    "tokio",
+    "tokio/time",
 ]
 tcp = [
     "net2",
-    "tokio-executor/blocking",
-    "tokio-net",
-    "tokio-timer",
+    "tokio/blocking",
+    "tokio/tcp",
+    "tokio/time",
 ]
 
 # unstable features
@@ -206,3 +198,4 @@ required-features = ["runtime", "unstable-stream"]
 name = "server"
 path = "tests/server.rs"
 required-features = ["runtime"]
+