Merge pull request #30 from readium/develop

Fixing static library to match new data model
Merge pull request #31 from readium/develop

Merging in latest stuff from develop
Merge branch 'develop' into release/0.12
fixed bug in URI.prototype.absoluteTo override
removed js injection to iframe
revorked handling of reader events for spinner and ui managemnt
build
added new Grunt task to build a most up to date "developer build" of the chromeApp (Chrome extension), with special icons and description/version (to distinguish from Chrome Web Store official build). This helps testing the latest code alongside the deployed public release.
added missing aria-labels alongside title attributes (a11y), changed toggle button implementation to support accessible button labels (on/off status)
added missing labels for Media Overlays timeline (percentage progress) and audio rate (~0x to 4x)
oops, restored hideout timer :)
(I tend to disable this feature when I test, as it gets in the way)
Merge branch 'develop' into feature/deep_link_cfi_resolve

Conflicts:
	lib/EpubReader.js
	lib/Readium.js
	readium-js
restorred addIFrameListener function
updated dependency
fixed accessibility issues with the settings dialog
custom Media Overlays highlighting styles
submodule and build update
Media Overlays settings saved for "touch-to-play" and "enable skippability". Other playback parameters like highlight-styling, audio volume and rate are more specific to each publisher's book, so we do not make them persistent.
fixed settings persistent storage for Media Overlays (part of 'reader' namespace)
some a11y tweaks
Removed FXL borders, no longer tries to call handleViewportResize if it does not exist
Merge remote-tracking branch 'origin/develop' into develop