Merge branch 'bookish-only' into epub-only
Book editor rerenders even if the TOC does not change

structurally. This is so events can properly bind to the DOM element
Added special models for book navigation
Pulled fresh changes
Merge branch 'bookish-only' into dev
Added overriding titles in the UI
Enable saving when book structure changes
Merge branch 'bookish-only' into dev
Merge branch 'bookish-only' into epub-only
Minor reordering to add book to ALL_CONTENT after everything else is initialized
Merge branch 'bookish-only' into epub-only
Updated models to use navTreeRoot

instead of navTreeStr
Added tests from dev branch
Merge branch 'bookish-only' into dev
Merge branch 'epub-only' into dev
Merge branch 'dev' of https://github.com/philschatz/github-book into dev