Merge pull request #7 from Flowduino/custom-event-filtering

5.2.0 - Custom Event Filtering for `EventListener`

Merge pull request #6 from Flowduino/event_younger_than

5.1.0 - Event "Younger Than" Age added

Merge pull request #5 from Flowduino/v5.0.0_LatestOnlyListeners

V5.0.0 latest only listeners

Merge pull request #4 from Flowduino/scheduled_dispatch

Scheduled dispatch

Merge pull request #3 from Flowduino/better-event-callbacks

Better event callbacks

4.0.2 - Bug Fix

Fixed a bug in `EventThread` for method `removeEventCallback` where it was declared with an incorrect parameter type for `forEventType`.

Opened necessary methods for overriding

Annoying Library-use issues in Swift.
Methods which must be overridden or invoked from inheriting classes, where the base comes from a Library, must be marked `open` as `internal` become frustratingly inaccessible.

Merge pull request #2 from Flowduino/4.0.0

4.0.0

Made new methods on `Eventable` public

To eliminate need to replicate boilerplating

Merge pull request #1 from Flowduino/event-listeners

Version 3.0.0