Modify rectangle-based visibility detection so it supports vertical writing mode.
Attempt at fixing findPageByRectangles for vertical writing mode
Second attempt at fixing findPageByRectangles for vertical writing mode
(works but confused about the requirement of RTL checks)
Remove disabled code for RTL handling when in VWM.
Special handling of RTL is not needed in this case.
adjusted CSS column algorithm in reflowable view to take into account single-column vertical writing mode (user setting has no effect, max text width corresponds  2x single-column threshold)
Merge pull request #113 from readium/feature/vertical-writing-client-rects

Visibility computations by client rectangles, vertical writing mode (column layout) #87
Fixes #34, adjusts inline style for all text containers
Bookmark location now gets saved once per resize start and restores when resizing at a throttled rate, and finally when the resize ends.
Added more tag types to the font size adjust function. Handled the case of line-height= normal
Merge branch 'develop' into feature/issue-118
adapted code that handles Media Overlays playback during viewport resize, following the change from debounce to throttle.
Merge pull request #120 from readium/feature/issue-118

Fix #118: Web browser window resize, "bookmark" location is saved+restored several times (throttled): actual reading position gets lost in the page spread
minor: try/catch for MathJax queue, as crashes in UIWebView (not sure why yet)
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)