Add readium-shared-js as a submodule.
Reorganize JavaScript and HTML resources to use the readium-shared-js submodule, and update to the new host feedback mechanism.
Implement three settings: is synthetic spread, column gap, and font scale.
Make use of the new SettingsApplied event from JavaScript in order to initialize the web view in stages and fix a regression in navigating to bookmarks.
Create README.md
Remove the bundle URL protocol. Fold its logic into the existing EPUB URL protocol so that all resources traversed by the web view have a common URL scheme.
Bring in the latest from readium-shared-js.
Bring in the latest from readium-shared-js, call the updated openBook method to simplify initialization.
Merge branch 'master' into develop
Merge branch 'release/0.8'