* Rename `NewTxQueue` to `TaggedTransactionQueue`
* Remove `BlockBuilder` API and support adding documentation to the API functions
* Adds new `BlockBuilder` API
* Fixes compilation with new `BlockBuilder` API
* Some more cleanup
* Cargo.lock update
* Try to fix on stable
* Add missing `As` imports.
* Adds new API traits that will be used by the client and runtime
* Switch consensus to new API's
* Switches transaction-pool to new API's
* Move runtime api stuff into its own crate
* Adds `impl_apis!` macro for implementing the new API traits
* Make `metadata` return directly a blob
* Runtime replace `impl_stubs!` with `impl_apis!`
* Switches to none feature based approach for declaring the different API traits
* Fixes compilation error
* Fixes errors
* Make the `decl_apis!` trait usable from the outside
* Make the `test-client` use the new API traits
* Remove last `impl_stubs!` bits and move some of them into wasm executor for tests
* A little bit more documentation
* Move module metadata from json string to custom metadata
* Revisit the metadata structures
1. Move the structures into the metadata crate.
2. Switch to using Cow/MaybeOwnedArray to support Encode/Decode
* Adapt to new metadata structures
* Convert event json metadata to new metadata structures
* Convert storage json metadata to new metadata structures
* Convert runtime metadata from json to new metadata structs
* Implements new metadata structures in client and runtime
* Fixes errors on `no_std`
* Fixes errors after rebasing master
* Do not use `Cow` anymore in metadata
Also replace `String` with our own type definition `StringBuf`.
This fixes compilation on `no_std`.
* Wrap `RuntimeMetadata` in `RuntimeMetadataVersioned` to support versioning
* Move metadata into `srml` and make core unaware of the implementation
* First effort
* API versioning
* Introduce validate_transaction
* Introduce the API plus fixes.
* Docs
* Typo
* Add longevity parameter to transaction validity info.
* Make `system` module renamable in `impl_outer_event!`
* Implement `construct_runtime!` macro
This macro generates code for calling all the common `impl_outer_*` macros.
* Add documentation
* Fixes wrong declaration of `contract`
* Update dependencies to work on `no_std`
* One more `Cargo.lock` update
* Address comments
* 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
Bastian Köcher