Upgrade from futures-preview to futures 0.3.1, and remove futures 0.1 where currently possible (#4083)

* Migrate node and node-template

* Migrate srml

* Simple changes

* Add async-std for interval

* Fix test-runtime warning

* Small changes

* move futures01 in core/rpc to dev-deps

* Change wasm CI builds

* Switch to async-std 1.0.1

* Remove async-std dep of network

* Add modified lockfile

* Fix node cli browser build

* Remove authority-discovery async-std dep

* Add Send + Sync to interval dyn stream

substrate/primitives/consensus/common/Cargo.toml

@@ -11,7 +11,7 @@ libp2p = { version = "0.13.0", default-features = false }
 log = "0.4.8"
 primitives = { package = "substrate-primitives", path= "../../core" }
 inherents = { package = "substrate-inherents", path = "../../inherents" }
-futures-preview = "0.3.0-alpha.19"
+futures = { version = "0.3.1", features = ["thread-pool"] }
 futures-timer = "0.4.0"
 rstd = { package = "sr-std", path = "../../sr-std" }
 runtime_version = { package = "sr-version", path = "../../sr-version" }

substrate/primitives/peerset/Cargo.toml

@@ -8,7 +8,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-futures-preview = "0.3.0-alpha.19"
+futures = "0.3.1"
 libp2p = { version = "0.13.0", default-features = false }
 log = "0.4.8"
 serde_json = "1.0.41"