* 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
* Add Assets module
* Fixes
* Fix
* Update comments
* Support `GenesisConfig` without any fields
Fixes: #923
* Do not generate an empty `GenesisConfig`, instead generate no `GenesisConfig`