Make polkadot-parachain call validate_block instead of validate (#297)

* Make `polkadot-parachain` call `validate_block` instead of `validate`

Also switch to rust 2018 in the crate

* Use `rstd`

* Make `load_params` a pointer

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

@@ -8,12 +8,15 @@ edition = "2018"
 adder = { path = ".." }
 parachain = { package = "polkadot-parachain", path = "../../../parachain", default-features = false, features = ["wasm-api"] }
 tiny-keccak = "1.4"
-dlmalloc = { version = "0.1.2", features = ["global"] }
+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"]
 
-[target.release]
+[profile.release]
 panic = "abort"
 lto = true