Fixes readium-js-viewer bug #218
Fixes #115, exclude a neighbour that is a reflowable item from a FXL spread
Merge pull request #129 from readium/feature/issue-115

#115: Reflowable page in FXL document is not laid out properly when in two-up mode
initial commit to fix #128
Merge pull request #131 from readium/feature/issue-128

spine item rendition:spread-none correctly handled in synthetic spread
fixed https://github.com/readium/SDKLauncher-OSX/issues/16 video interactivity issues, was because of CSS 3D GPU acceleration in iframe rendering sequence (which is necessary for some EPUBs due to cropped images in UIWebView)
ensure 3D CSS acceleration setting is up to date (default value, which may not be provided by launcher app options)
Merge pull request #132 from readium/feature/video_CSS_3D_GPU_acceleration_FXL

video controls CSS 3D GPU acceleration (FXL)
fixes #133 (enables pan during zoomed fixed layout documents, just like Chrome extension and cloud reader readium_js.css)
reviewed and cleaned-up the CSS 3D GPU-accelerated code routines (now off by default as it was creating too many nasty side effects, and the native WebView can be tweaked so that its rendering surface compositing works well with the iframes inside reader.html)
Merge pull request #134 from readium/feature/webviewRenderingBug

review and clean-up of the CSS 3D GPU-accelerated code routines (now off by default)
follow-up to #134 : code harmonisation (css prefixes, now with issue in tracker to improve the method), and fix for Safari which needs -webkit- after the non-prefixed version.
oops typo! (sorry)
quickfix: views were using local  settings before they were assigned. should use reader settings as they will be up to date at pre-render time.
added Reader parameter to enable OSX launcher to specify that it needs a workaround for the fixed layout scaled rendering (CSS transform), see https://github.com/readium/SDKLauncher-OSX/issues/21
Merge remote-tracking branch 'readium/develop' into develop