1.1.0 release

[1.1.0] - 2017-09-02

Added

• Add support for else clause in case_wait and cond_wait. (Issue #4)
• Add this CHANGELOG

Changed

• Use supervisor to manage condition variables. (Issue #5)

Fixed

• Grammar fixes for README and @moduledoc. Thanks to @GregMefford for the fixes.
• Fix unexpected messages from wait_for_it when used with Genserver