* Final tweaks for PoC-2 runtime upgrade

* Address grumble

* Avoid slow wasm

* New poc-2-era bootnodes

* Fix warning

* Typo

* Fix for allocation in wasm

* Fix & runtimes.

* PoC-1 should be default.

* Name testnet Krumme Lanke, update README

* YML update

* Use the right port

* Remove unused build.sh

* Don't use wasm-export-table anymore.

* Rebuild binaries.

* Fix build script.

* Switch from devp2p to libp2p

* Move the keys in the network state

* Properly load, store or generate private key

* Some robustness

* Update for latest libp2p

* Allow secio

* Don't open a new Kademlia connec all the time

* Handle Kademlia disconnection

* Set correct permissions on key file

* Improvements to secret key storage

* Flush the peer store at Kademlia requests

* Use RAII guards for disconnection

* Some misc work

* Set informations about peers

* Fix tests and external URL

* Fix some style

* Split obtain_private_key into multiple function

* More style fixes

* More style fixes

* Fix some concerns

* Turn // into ///

* More style fixes

* More style fixes

* Add annotations to unreachable!

* Fix style again

* Remove commented out code

* Fix test year

* More concerns

* Update README.md

* clang is not required

docs: Fixes #204. Update Readme. Add command to switch to Rust stable. Append binaries to installation command (#205)

* docs: Fixes #204

* Add command to switch to a stable version of Rust before installing Polkadot PoC-1 since error occurs when trying to install using Rust Nightly, which some users may have configured as their active toolchain
* Append ` polkadot subkey` to the command that installs the latest version of Polkadot PoC-1 to overcome error

* Update README.md

added the Rust version

* Fix initialisations and add a test.

* Fix test.

* Fix overflow bug.

* Minor refactoring and fixes.

* Fix vote threshold.

* Add note.

* Fixes for latest rust and the readme.

* Better readme.

* An extra validator for PoC-1

* Update README.

* PoC-1 bootnodes.

* don't return async::notready for messages without scheduling wakeup

* Fix endowed account

* give polkadot control over round proposer based on random seed

* address grumbles.