Workspace is now a singleton so implementations can hook in easier
Fixed Firebug scrollTo problem
Clean up sign-in/out a bit
New content gets an id ('_NEW:*') so it can be added to a book

When the id updates on save the book updates its reference
Added ability to get the main layout
Added Note to Aloha toolbar
Save works when an id is set
Added Aloha CSS
Merge branch 'bookish-only' into epub-only
Fixed up to use Bookish.WORKSPACE singleton
Added listener to re-render when changes occur
Merge branch 'bookish-only' into epub-only
Merge branch 'epub-only' into dev
Removed SearchResults and instead just operate on ALL_CONTENT

using the Models.WORKSPACE singleton