fixed double-fileUpload chooser
run success handler after collection fetch after decided whether we need to fetch more resources or not, to be able to provide more info to those fetching the collection
append page el to the document first thing on render so we can get it to physics land ASAP
better cssPrefix calculation
some more physics tricks - pop in, fade in
Merge remote-tracking branch 'origin/physicsWorker' into physicsWorker