Remove dependencies on eventuals.
Implement `fold` without eventuals.
Remove dependency on eventuals from hub tests.
Update error handling related tests to reflect
latest changes.
Bump version of reducible to a bigger range to
make updates more flexible.
Write tests to make sure error handling works as expected.
Add test to make sure errors can be re-captured.
Make sure that fold error propagates further.
bump a version to 3.0.0-alpha
Merge pull request #31 from Gozala/version/3

Version 3 alpha