* Initial stuff.
* Various fixes.
* Fix tests.
* Fix another test
* Fix another test.
* Docs in polkadot runtime.
* Fix up ser/de tests.
* Update god keys
* Syntax
* Fix
* Merge remote-tracking branch 'origin/master' into gav-merge-runtime
* Permissions on init.sh
* Port-over the whitespace from @rphmeier
* Rename
* Merge branch 'master' into gav-merge-runtime
* Fix typo.
* Fix grumbles.
* Make more idiomatic.
* Move `Ed25519Signature` out of traits.
* Block builder (substrate)
* Fix wasm build
* Bulid on any block
* Test for block builder.
* Block import tests for client.
* Tidy ups
* Repotted client
* Avoid pointless work
* All backend stuff now manages optional storage.
Also simplified a lot of the backend.
* Native runtime-io now supports empty storage items.
* Finish up the API transition.
* Build fix.
* Fix tests.
* Remerge in changes to client.
* Final fixes.
* Unrevert typos
* Remove accidentally committed change
* Bring back zero copy
* Fix merge.
Gav Wood