Refactoring of lib/core/event.js to use Promises where possible.
Refactoring of lib/core/event.js to use Promises where possible.

ManatiCR/kalabox,RobLoach/kalabox,oneorangecat/kalabox,oneorangecat/kalabox,kalabox/kalabox-cli,kalabox/kalabox-cli,ari-gold/kalabox,rabellamy/kalabox,rabellamy/kalabox,RobLoach/kalabox,ari-gold/kalabox,ManatiCR/kalabox