* Adds benchmark for direct/indirect wasm function calls
* Store the benchmark function pointer in a `Cell`
* Add some documentation
* Make function implementations exchangeable
* Add parachain stub
* Add macro for registering the `validate_block` function
* Make all functions replace-able by unimplemented
* Some more refactoring
* Adds tests for executing empty parachain block
* Work on a new test with empty witness data
* Don't exchange `ext_print_*` stuff
* Some cleanup and one more function for `validate_block`
* More tests and more functions
* Fixes after merging master
* Use `parity-codec` `derive` feature
* CHange implementation of `wasm-nice-panic-message`
* Move `parachain` stuff to cumulus
* Updated wasm files
* Integrate feedback
* Switch to `ExchangeableFunction` struct
* More fixes
* Switch to Cell and panic on multiple replaces
* Increase `impl_version`
* Fix shifting
* Make the API more verbose of `ExchangeableFunction`
* Increase `impl_version`
* impl Compact<> and HasCompact for Permill Perbill
* update parity-codec to 2.2
* add Cargo.lock
* add lock and build for runtime
* rebuild Cargo.lock after rebase
* Try to make everything compact
* Make `Clone` work
* Fix
* Move contracts and balances over to compact encoding
* Session and timestamp are compact
* Sataking uses compact numbers
* Treasury now compact
* Compact Democracy
* Council is compact
* Fix
* First effort
* API versioning
* Introduce validate_transaction
* Introduce the API plus fixes.
* Docs
* Typo
* Add longevity parameter to transaction validity info.
* Remove unneeded script
* Rename Substrate Demo -> Substrate
* Rename demo -> node
* Build wasm from last rename.
* Merge ed25519 into substrate-primitives
* Minor tweak
* Rename substrate -> core
* Move substrate-runtime-support to core/runtime/support
* Rename/move substrate-runtime-version
* Move codec up a level
* Rename substrate-codec -> parity-codec
* Move environmental up a level
* Move pwasm-* up to top, ready for removal
* Remove requirement of s-r-support from s-r-primitives
* Move core/runtime/primitives into core/runtime-primitives
* Remove s-r-support dep from s-r-version
* Remove dep of s-r-support from bft
* Remove dep of s-r-support from node/consensus
* Sever all other core deps from s-r-support
* Forgot the no_std directive
* Rename non-SRML modules to sr-* to avoid match clashes
* Move runtime/* to srml/*
* Rename substrate-runtime-* -> srml-*
* Move srml to top-level