Update to latest Substrate master (#320)

* Make `collator::Network` require `Send + Sync` to make it work

* Update packages

* Update to latest Substrate

* Make it compile and make tests work

* Use `polkadot-master`

* Fix CI

* Remove `build.sh` from readmes

* Delete old stuff

* Bring one back

polkadot/test-parachains/adder/wasm/Cargo.toml

@@ -1,23 +0,0 @@
-[package]
-name = "adder-wasm"
-version = "0.1.0"
-authors = ["Parity Technologies <admin@parity.io>"]
-edition = "2018"
-
-[dependencies]
-adder = { path = ".." }
-parachain = { package = "polkadot-parachain", path = "../../../parachain", default-features = false, features = ["wasm-api"] }
-tiny-keccak = "1.4"
-dlmalloc = { version = "0.1.3", features = ["global"] }
-
-# We need to make sure the global allocator is disabled until we have support of full substrate externalities
-rstd = { package = "sr-std", git = "https://github.com/paritytech/substrate", branch = "polkadot-master", default-features = false, features = [ "no_global_allocator" ] }
-
-[lib]
-crate-type = ["cdylib"]
-
-[profile.release]
-panic = "abort"
-lto = true
-
-[workspace]