* Bump to alpha.3

* update gitlab-ci

This patch renames the crate for the following two reasons:

1. The prometheus-exporter crate introduces native in-process Prometheus
style instrumentation to the Substrate project. Within the Prometheus
ecosystem the term "exporter" is used for external processes exposing
metrics for e.g. the Linux Kernel. In-process exposition would be
described via the term "endpoint".

2. "prometheus-exporter" is generic and ignores the fact that it is only
usable within the context of Substrate. In addition the name
"prometheus-exporter" is already taken on crates.io.

* Formatting clean up

* Introduce separate setters for the fees.

* removes use of sc-client from sc-basic-authorship

* refactor use of ProposerFactory

* correct dep path

Sadly we need to keep one function `ext_blake2_256`. This function is
manually defined in `sp-core`.

* removes use of sc_client::Client from sc_finality_grandpa

* code formatting

* code formatting

* removes use of sc_client::Client from sc_finality_grandpa

* setting first batch of descriptions

* fix what I just broke

* next batch

* and pallets, too

* last batch

* set cargo.lock

* keep'em dev-deps

* bump version to alpha.2

* Handle gas_price being zero separately

* Bump spec_version

* Add a unit & integration tests for gas price = 0

* Activate publishing of draft releases...

... And fix the message sending (missing parameter).

* publish_draft_release.sh now checks latest...

... release on github rather than just a tag

* repro ui bug

* fix the tests

* test with the new image

* test without CARGO_HOME

* test without fixes

* test again

* fix trybuild old versions

* bump CArgo.lock

* fix trybuild newest versions

* bump Cargo.lock

* trying on the latest image

* bump Cargo.lock

* run with the old image

* ci will be green on the image from 2020-02-19 [skip ci]

* bump Cargo.lock

* Adds documentation for `wipe` and `commit`

This adds documentation to `wipe` and `commit` of `Externalities`.
Besides that it removes the default implementation that would just panic
and requires that all implementers of the trait implement the functions.

* Update primitives/externalities/src/lib.rs

Co-Authored-By: joe petrowski <[email protected]>

Co-authored-by: joe petrowski <[email protected]>

* Less verbose state-db logging

* Validate block responses for block bodies

* Update client/network/src/protocol.rs

Co-Authored-By: Bastian Köcher <[email protected]>

* Added validation test

* Disconnect on missing header as well

* Typo

Co-Authored-By: André Silva <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: André Silva <[email protected]>

bump version to -alpha.1

* do not check unleash on every PR, only master and tags

* move scripts folder

* add signed-tag check to CI

* remove publish-to-crates-io dependencies

Co-authored-by: s3krit <[email protected]>

* fix doc

* rephrase

* Remove indices from node-template

* Use identity lookup instead

* Bump impl

* clean cargo.toml

* Add steps setting to CLI, use max value to hit worst case.

* Bump impl_version.

* Apply review suggestion.

Instead of just testing `cargo` and `rustup run nightly`, we now test
the `CARGO` env variable and also scan non default nightlies. The user
is also now able to select the toolchain with `WASM_BUILD_TOOLCHAIN`.

* aura: remove unused transaction pool parameter

* node-template: remove transaction pool from aura

* aura: fix tests

* Initial commit

Forked at: 41bb2193
Parent branch: origin/master

* Increase killing grace period of CLI tests and display more info

* Use --dev everywhere possible

* Put pruning mode to its own params struct

* Add pruning params to export-blocks command

* Added missing file

* Removed not-dev mode in tests

* Add pruning mode to the revert command

* Decrease killing grace period again

* Move back unsafe_pruning to import_params

* Applied proposed changes

* adding unleash to ci

* fixing formatting

* with a dot please

* alpha.3 now

* do not publish testing helpers

* remove old test-helpers cruft

* fix cargo.lock

* with alpha 4

* do not publish runtime-interface-test either

* disable more test crates from publishing

* switch to alpha.5

* replace tempdir with tempfile

* update lru

* switch to bytes 0.5

* release script fixes

* switch on and to latest alpha

* BUT THE SPACES

* Squash and rebase from gav-lazy-reaping

* Bump version

* Bump runtime again

* Docs.

* Remove old functions

* Update frame/balances/src/lib.rs

Co-Authored-By: Shawn Tabrizi <[email protected]>

* Update frame/contracts/src/lib.rs

Co-Authored-By: Shawn Tabrizi <[email protected]>

* Warnings

* Bump runtime version

* Update frame/democracy/src/lib.rs

Co-Authored-By: Shawn Tabrizi <[email protected]>

* Update frame/system/src/lib.rs

* Clean up OnReapAccount

* Use frame_support debug

* Bump spec

* Renames and fix

* Fix

* Fix rename

* Fix

* Increase time for test

Co-authored-by: Shawn Tabrizi <[email protected]>
Co-authored-by: Benjamin Kampmann <[email protected]>

* setting versions to development pre-release

fixing version in dependencies

* unset already released wasm-builder

* do not publish test crates

* adding licenses

* setting homepage metadata

* set repository url

* remove networkspecialization

* Fix most of the fallout

* get all tests compiling

Co-authored-by: Pierre Krieger <[email protected]>

Related to #4776 
Related to https://github.com/paritytech/polkadot/pull/832

To summarize the changes:
1. I did not manage to validate with types the service's Configuration. But I did reduce the possibility of errors by moving all the "fill" functions to their respective structopts
2. I split params.rs to multiple modules: one module params for just CLI parameters and one module commands for CLI subcommands (and RunCmd). Every command and params are in their own file so things are grouped better together and easier to remove
3. I removed the run and run_subcommand helpers as they are not helping much anymore. Running a command is always a set of 3 commands: 1. init 2. update config 3. run. This still allow the user to change the config before arguments get parsed or right after.
4. I added tests for all subcommands.
5. [deleted]

Overall the aim is to improve the situation with the Configuration and the optional parameters, add tests, make the API more consistent and simpler.

Idea is much the same as we currently do on polkadot - When a new tag is pushed (that fits our pattern for tags, e.g. v1.2.3), find a list of labelled changes and generate a changelog based on that. Create a draft release on Github and post about it on Matrix.

* removes use of sc_client::Client from sc_consensus_babe

* Update client/consensus/babe/src/lib.rs

Co-authored-by: Benjamin Kampmann <[email protected]>

* Open one substream for each notifications protocol

* Fix WASM build

* Apply suggestions from code review

Co-Authored-By: Toralf Wittner <[email protected]>

* Address concerns

* Use unsigned-varint to read the varint

* Use unsigned-varint

* Forgot Cargo.lock

Co-authored-by: Toralf Wittner <[email protected]>

* node-template: disable grandpa observer

* node: disable grandpa observer

* node: add doc about grandpa-voter infallible task

* grandpa: remove grandpa observer from public API

* grandpa: ignore observer_enabled field in config

* aura: remove unneeded SlotDuration struct and rename digest -> digests

* aura: add alias type for SlotDuration

* aura: fix tests

* Fix missing parameters in get_or_compute

* Use special function for fetching aura slot_duration

* Un-deprecate ValidateUnsigned.

* Bump runtime.

* Bump runtime.

Co-authored-by: Shawn Tabrizi <[email protected]>