Image source refactoring
Add a d3 example
Pass pixelRatio to canvasFunction
Pass state option to image source constructors
Add ol.source.ImageVector
Add image vector layer example
Update quickstart.hbs

Fix the error due to outdated ol.source.MapQuestOpenAerial() because of this feedback https://groups.google.com/forum/#!topic/ol3-dev/6xi2n7nMg8k on the ML
Update quickstart.hbs

Fix on the fix ;) because a removed new via the Github UI
Only create a frame state if the map has non-zero size
Example demonstrating a spyglass effect

Riffing off of the layer swipe example, this one demonstrates viewing one layer over another though a lens.
Remove social links from d3 example
Add example-behaviour.js to d3 example, thanks @tschaub
Add ol3 logo to d3 example
Make olx types appear in API docs
Add docs for ol.source.ImageVector
Export ol.source.ImageVector's styleFunction option
Add draw interaction events