* Fix typo in offchain's docs
* Use Self keyword in AsyncApi::new()
* Move httpclient to be part of OffchainWorkers to optimize block import
* Fix compilation errors for tests
* Add wrapper struct for HyperClient
* Use lazy_static share SharedClient amongst OffchainWorkers. Remove the need to raise the fd limit
* Revert "Use lazy_static share SharedClient amongst OffchainWorkers. Remove the need to raise the fd limit"
This reverts commit 7af97498a2383b5d7405e27823db8fd97245da41.
* Add lazy_static for tests