Reflowable Layout
Bug Fixed when going to background mode, media does not stop playing sometimes.
Bug Fixed about Footnote which is based on aside tag in html5.
Bug Fixed that in some devices, app crashes in curling mode.
Bug Fixed that jumping to certain chapter with hash location failed in some devices.

Fixed Layout
Bug Fixed when going to background mode, media does not stop playing sometimes.
Bug Fixed that video which has auto-play property does not play sometimes.