[CHANGES]
- Added ->is_failed accessor
- Implement ->export_to_level in Future::Utils
- Print a warning about lost sequence Futures
- Allow Future->done and Future->fail as simple class constructors
to return immediates
- Added Future->unwrap
[BUGFIXES]
- Ensure that sequence futures are weaken()ed in the forward
direction.
NOTE This will potentially break existing code that depended on
strong references. This old code was, however, broken.