Added release notes to the CHANGELOG and bumped the version to 5.0.0.

Added release date and filter to the CHANGELOG for the 4.0.0 release.

Added release notes to the CHANGELOG and bumped the version to 3.0.2.

Update travis for correct Xcode 8.3 simulators.

Update travis for correct macOS Willow target name.
Update copyright dates to 2017.
Update plist versions.

Fixed issue in travis yaml file where framework scheme was invalid fo…

…r macOS.

Tweaked the bullet list in the README to not be so overly verbose.

Replaced `emoticons` with `emoji` throughout the project.

Bumped the podspec version to 1.1.0.

Set the official release date of the 1.0.0 release in the CHANGELOG.