1.2.0

Added

• sain.collections.HashMap
• Bytes.chars
• Bytes.as_ptr
• Iterator.collect_into
• Option.insert
• Option.get_or_insert
• Option.get_or_insert_with
• Option.ok_or
• Option.ok_or_else
• Option.zip
• Option.zip_with
• Option.inspect

Changed

• Improved performance by removing nothing_unchecked calls from methods that return Option[T] by replacing with NOTHING constant.
• MaybeUninit no longer exported to top level.
• Option.into_inner renamed to Option.transpose
• Lazy and LazyFuture now take a closure that initialize the value at first access
  instead of calling .set manually.
• Renamed Bytes.as_bytes to Bytes.to_bytes

Removed

• Option.as_ref
• Option.as_mut
• Cell and RefCell