Update to latest DevHub Substrate version (= Polkadot v0.9.15-1)

* Updates from the node template (up to rev. #1ea0883)

* Updates from the node template (up to rev. #1ea0883)

* Update to monthly-2021-11 - wip

* Update to monthly-2021-11-1 / rust 2021

* Cleanup

* Fix clippy warning

* use double quotes instead of single quotes

* Update node-template construct_runtime! syntax

* Fix incorrect validator set config; update runtime config & benchmarks

* Update to Substrate monthly-2021-12

* Updates from the node template (up to rev. #1ea0883)

* Updates from the node template (up to rev. #1ea0883)

* Update to monthly-2021-11 - wip

* Update to monthly-2021-11-1 / rust 2021

* Cleanup

* Fix clippy warning

* use double quotes instead of single quotes

* Update node-template construct_runtime! syntax

* Fix incorrect validator set config; update runtime config & benchmarks

* Add scheduler pallet

* Update Substrate to monthly-2021-09+1

* Add utility pallet

* Trappist node docker image

* Copy CA certs in docker img

* Add scheduler pallet

* Update Substrate to monthly-2021-09+1

* Add utility pallet

* Trappist node docker image

* Fix build

* Fix build

* Repo name must be lowercase

* Add scheduler pallet

* Update Substrate to monthly-2021-09+1

* Add utility pallet

* Trappist node docker image

* Fix build

* Fix build

* Add scheduler pallet

* Update Substrate to monthly-2021-09+1

* Add utility pallet

* Add scheduler pallet

* Update Substrate to monthly-2021-09+1

* Added collective pallet. Made validator set work with collective origin.
* Use EnsureRootOrHalfCouncil origin as ForceOrigin for assets pallet
* Fixed validator addition using council.
* Replaced threshold for council.

Co-authored-by: Steve Degosserie <[email protected]>