* Merge remote-tracking branch 'origin/master' into gav-xts-dont-panic
* Update wasm.
* consensus, session and staking all panic-safe.
* Democracy doesn't panic in apply.
* Fix tests.
* Extra helper macro, council depanicked.
* Fix one test.
* Fix up all council tests. No panics!
* Council voting depanicked.
* Dispatch returns result.
* session & staking tests updated
* Fix democracy tests.
* Fix council tests.
* Fix up polkadot parachains in runtime
* Fix borked merge
* More Slicable support
Support general `Option` and array types.
* Basic storage types.
* Existential deposit for contract creation
* Basic implemnetation along with removals
* Fix tests.
* externalities builder fix.
* Tests.
* Fix up the runtime.
* Fix tests.
* Add generic `Address` type.
* Initial function integration of Address into Extrinsic.
* Fix build
* All tests compile.
* Fix (some) tests.
* Fix signing.
* Push error.
* transfer can accept Address
* Make Address generic over AccountIndex
* Fix test
* Make Council use Address for dispatch.
* Fix build
* Bend over backwards to support braindead derive.
* Repot some files.
* Fix tests.
* Fix grumbles
* Remove Default bound
* Fix build for new nightly.
* Make `apply_extrinsic` never panic, return useful Result.
* More merge hell
* Doesn't build, but might do soon
* Serde woes
* get substrate-runtime-staking compiling
* Polkadot builds again!
* Fix all build.
* Fix tests & binaries.
* Reserve some extra initial byte values of address for future format changes
* Make semantic of `ReservedBalance` clear.
* Fix panic handler.
* Integrate other balance transformations into the new model
Fix up staking tests.
* Fix runtime tests.
* Fix panic build.
* Tests for demonstrating interaction between balance types.
* Repot some runtime code
* Fix checkedblock in non-std builds
* Get rid of `DoLookup` phantom.
* Attempt to make transaction_pool work with lookups.
* Remove vscode settings
* New attempt at making transaction pool work.
* It builds again!
* --all builds
* Fix tests.
* New build.
* Test account nonce reset.
* polkadot transaction pool tests/framework.
* Address grumbles.
* Pool support non-verified transactions.
* Revert bad `map_or`
* Rebuild binaries, workaround.
* Avoid casting to usize early.
* Make verification use provided block_id.
* Fix tests.
* Alter tests to use retry.
* Fix tests & add call to re-verify.
* Semi-refactor.
* Integrate new queue with the rest of the code.
* Fix tests.
* Add reverify_transaction method.
* Use result.
* Use latest version of txpool.
* Initial version of the pool.
* Fix abstraction.
* Implement watchers and notifications.
* Return hash from RPC.
* Remove commented code.
* Remove client dep.
* Fix tests.
* Initial version of http server.
* Refactor the structure.
* add unassigned ports info.
* Rename servers to match conventions.
* Add client crate and some proper RPC implementations.
* Style & docs.
Tomasz Drwięga