Make `--dev` default behavior and highlight modifications that have been made for non-production use (#56)

* Fix repo link

* Make `dev` the default mode when started without cli params

* Explain difference to production node

* Improve readme

* Improve wording

* Synchronize with Substrate

* Bump version

* Update `Cargo.lock`

* fixed LengthToFee & Benchmark

* fixed LengthToFee & Benchmark

* clean code CI

* Clean code - Fixed CI

* Synchronize with latest Substrate `master`

* Bump version to `0.12.0`

* Update `Cargo.lock`

* Update commit hash in readme

* Synchronize with Substrate

* Bump version to `0.11.0`

* Changed consensus to manual-seal

* clean code according to PR comments

* Synchronize with Substrate

* Update commit hash

* Bump versions to `0.10.0`

* Synchronize with Substrate

* Bump versions to `0.9.0`

* Update `Cargo.lock`

* Update Substrate synced commit hash

* Synchronize with Substrate

* Bump versions to `0.8.0`

* Bump substrate

* Update README.md

* Bump dependencies

* Remove unused microunit

* Bump version

* Update README

* Update substrate dependencies to 7409589ab78e7cb508db873dd6384634d667b8f5

* Update runtime/Cargo.toml

Co-authored-by: Hernando Castano <[email protected]>

* Update node/src/service.rs

Co-authored-by: Hernando Castano <[email protected]>

* Apply rustfmt and update the commit reference in README.md

Co-authored-by: Hernando Castano <[email protected]>

* Sync with Substrate

* Bring back `CONTRACTS_DEBUG_OUTPUT`

* Add CODEOWNERS file

* Add core devs as codeowners

* Revert me: Temporarily allow large contracts

* Update runtime/src/lib.rs

Co-authored-by: Hernando Castano <[email protected]>

Co-authored-by: Hernando Castano <[email protected]>

This reverts commit 8d91b8e5.

* CI: copypasta from canvas

* CI: add cache pre-population

* Use `--locked` by default in installation instructions

* Update README.md

Co-authored-by: Andrew Jones <[email protected]>

Co-authored-by: Andrew Jones <[email protected]>