2.6.0

• 240x faster (Pull Request #22) by removing SwiftState dependency

2.5.0

• Added clone()
• Improved lazy evaluation (when paused-init then resume())

2.4.0

• Fixed not to propagate pause/resume/cancel to upstream
• Added name() (set name)
• Added Carthage 0.5 support

2.3.0

• Added paused-init feature
• Fixed Carthage 0.3 build

2.2.0

• Added Carthage 0.3 support

2.1.0

• added retryable feature try()

2.0.0

Ver 2.0.0 improves Swift's type-inference by adding success() method
to reduce too many overloads on then() method.

• task.progress()'s progressClosure type changed from Progress -> Void to (oldProgress: Progress?, newProgress: Progress) -> Void
• task.then(fulfilledClosure) is renamed to task.success()
• task.catch(catchClosure) is renamed to task.failure()
• task.then() is no longer used for fulfilled-only handling

See #8 for more information.