* Missing trait def on two calls.
Slight mcla refact on transfo.
* Allways provide GenesisConfig even when useless (for runtime module
export).
* Revert "Allways provide GenesisConfig even when useless (for runtime module"
This reverts commit 84a29bc592023d1ee107519c58693ec19dbde2d2.
* Fix Vec usage (from rstd).