* New slashing mechanism (#554)

* Slashing improvements

- unstake when balance too low
- unstake after N slashes according to val prefs
- don't early-terminate session/era unless unstaked
- offline grace period before punishment

* Fix warning

* Cleanups and ensure slash_count decays

* Bump authoring version and introduce needed authoring stub

* Rename

* Fix offline tracker

* Fix offline tracker

* Renames

* Add test

* Tests

* Tests.

* Remove accidental merge files.

* Version bump, fixes (#572)

* Bump version, don't propose invalid blocks

* Fix build.

* Fixes.

* More fixes.

* Fix tests.

* Fix more tests

* More tests fixed

* Fix merge

* Fix accidental merge bug

* Fixes.

* Staking failsafes

- Don't slash/unstake/change session when too few staking participants
- Introduce set_balance PrivCall

* Make minimum validator count dynamic.

* test fixes

* Fix tests.

* Fix tests

* Fix tests, update readme.

* Test with release.

* Use safe math when dealing with total stake

* Fix test again.

* Fix grumbles.

* Improve docker image size with a 2 stages image

* Minor doc updates

* Fix and reduce size of the docker image

* Fix paths in scripts

typo fix

Fix #437

* Add Dockerfile

Add documentation

Ref #375

* Add PORT, VOLUME and reduce size of the docker image significantly

Fix doc and reduce image size

Fix #375

* Fix docker compose

* Rename readme

* Add some Asciidoc demo

* Remove extra lines

* Add build script to generate completion scripts

* Add installation doc for the shell auto-completion

* Make telemetry less susceptible to flakey wifi

* Update readme

* Staging shouldn't autoconnect to telemetry

* Don't try to output more than 1KB of hex to Display

* Better logging of transactions

* Grumbles

* off-by-one

* 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.