v1.1.3

This is a maintenance release.

chore: Fixed merge conflicts and updated readme.
chore: Removed Node 6 from CI builds because of Yarn.
chore: Removed deprecated gulp-util. Added fancy-log and ansi-colors.
chore: Added Appveyor badge.
chore: Fixed Travis CI badge.
chore: Added some eslint plugins.
chore: Added missing jsdoc.
chore: Removed old codeclimate config.