fixed __setobj__ not doing the opposite of __getobj__
replaced deprecated mock with double
Merge pull request #13 from ggPeti/setobj_and_marshal_fix

__setobj__ and marshal_load fix
Bugfix release
Update README.md
Update README.md
Lock on a rubinius version
fixed race condition with 2 threads waiting on the same future
Merge pull request #14 from ggPeti/race_condition_fix

Fixed race condition with 2 threads waiting on the same future
Bugfix release
passing through #nil?
Merge pull request #15 from ggPeti/passing_through_nil

Passing through #nil?
Not forwarding #clone
Merge pull request #16 from ggPeti/not_forwarding_clone

Not forwarding #clone
Version bump
Update README.md
Future should not marschal when it contains exceptions
Merge pull request #18 from nedap/master

Future should not marschal when it contains exceptions
Bugfix release