reset page offest for new spine item
Merge branch 'develop' of github.com:readium/readium-js-viewer into develop
readium module definition, new Grunt task to generate epubReadingSystem.json in build folder
fixed: fixe layout books sometimes not displaing anything on initial load in chromeApp
git-describe grunt task to obtain the revision tag/name/hash, etc.
Merge branch 'develop' of github.com:readium/readium-js-viewer into develop
submodule