Update author field

Requested by @silvamerica - :+1:
Use unprefixed rAF and cAF first, if available
Merge pull request #56 from box/use-unprefixed-raf

Use unprefixed rAF and cAF first, if available
Add realtime plugin
Fix race condition with page streaming if a doc is already finished converting
Move message queueing into scope; add realtimeupdate event to realtime plugin
Add realtime example with simulated conversion and SSE
Update readme to mention realtime plugin
Handle realtime `error` events better
Merge pull request #53 from box/realtime-plugin

Add realtime plugin
Add Data Providers
Add test for ajax.fetch
Remove modelName arg from data-provider get() methods
Add test for metadata data-provider
Add test for stylesheet data-provider
Add test for page-img data-provider and fix issue with request abortion
Fix a bug where pageload messages were fired too many times
Fix a missing stub in viewer-test
Add ability to override default data providers