Updated the font resizing capability to use larger pixel values so that the minimum threshold on mobile devices (such as Kindle HDX) is not reached.
Merge branch 'resize'
Added family of event-relaying components.
Merge branch 'relay' into example-box2d
Merge branch 'relay' into box2D
Added "entity-created" notification to collision-box2d component.
Integrating support for more joint types and polygonal shapes from Tiled.
Merge branch 'box2D' into example-box2d