0.4.0

• Add test for acquiring position synchronously
• Avoid boxing for the fast path.
• Fix
• Initial commit
• Make test more complicated
• Maybe revert unsafe stuff
• Merge pull request #1 from dsherret/chore_format
• Merge pull request #2 from dsherret/feat_task_queue
• Update
• Updates
• feat: Add abort_handle
• feat: SharedLocal future (#12)
• feat: unbounded_channel (#7)
• feat: add UnsyncWaker
• feat: add tokio feature (#17)
• feat: move TaskQueue from deno_core and make unsync
• feat: split_io (!Send) (#5)
• fix(TaskQueue): handle middle future dropped while permit acquired (#3)
• fix: Cargo.toml changes
• fix: Cargo.toml changes
• fix: borrow_mut error in future.rs (#14)
• fix: make waker in Shared Send and Sync (#16)
• fix: maybe fix borrow_mut again (#15)