1.1.0

Implemented enhancements:

• Add ability to throw errors in all Task continuations that return a Task. #14 (nlutsenko)
• Improve and add missing documentation. #10 (nlutsenko)

Fixed bugs:

• Fix usage of CancelledError, add tests for error handling inside tasks. #13 (nlutsenko)

Merged pull requests:

• Add more tests and fix documentation. #12 (nlutsenko)
• Use Xcode 7.3 for Travis-CI. #11 (nlutsenko)