* Improve doc

- convert some md to adoc
- include contrib docs to the main readme
- add readme for some packages and include them

* Bring changes from 68f83a25 into the replacing adoc file

* Minor fixes

* Remove files irrelevant for substrate

* Remove old polkadot related doc

Gav Wood authored Jul 15, 2018 and Arkadiy Paronyan committed Jul 15, 2018

* Cleanups (remove genesis.wasm & nicer errors)

- Pretty errors for version mismatch
- Remove the need for genesis wasm

* Remove unneeded wasm files

* Improve code of conduct

* Leaner code

* Test fixes

* fix tests

* Fix consensus checking