* feat(providers): tokio 1.0
BREAKING: This removes async-std as a compatibility option
* feat: tokio 1.0 in rest of crates
* fix: patch Cargo.toml until deps are released
* fix(contract): load ws deps
* feat: bytes 1.0 (#121)
* feat(core): move to bytes::Bytes
* feat: adjust rest of crates to Bytes
* chore: bump deps
CI fails due to:
https://github.com/snapview/tokio-tungstenite/pull/142#discussion_r550445144
* chore: use latest tokio-tungstenite
* ci: split tests into jobs (#129)
* Switch to `hex` (#128)
* fix(core): replace rustc_hex with hex
* fix(providers): replace rustc_hex with hex
* chore: replace rustc-hex with hex
* chore: cargo fmt
* fix(ledger): copy address from string correctly
* chore: fix flaky tests
Fixes#105
* fix(signers): make Signer send by blocking on Ledger calls
* fix(providers): use Arc in WS impl to allow cloning
* feat(middleware): add geometric gas price escalator
* test(middleware): ensure that we can still stack everything up
* fix(middleware): default to tokio/async-std
* chore: fix clippy
* docs(middleware): add docs and rename middlewares
* chore: fix doctests
* feat: add linear gas escalator
https://github.com/makerdao/pymaker/blob/master/tests/test_gas.py\#L107https://github.com/makerdao/pymaker/blob/master/pymaker/gas.py\#L129
* feat: add constructors to gas escalators
Georgios Konstantopoulos