Version 3.5 sent to AppStore (media overlay epub, fixes)

[petrjahoda]

■ New features
- Read-along narration: EPUBs that ship synced narration (EPUB 3 Media Overlays) can now be read along to, with the spoken sentence highlighted as the narrator reads.

■ Improvements
- Your place in a book now catches up across devices: reopening a book jumps forward to the furthest point you reached on another device, and never backwards.
- More book covers show up: EPUBs whose artwork couldn't be read before (because of the size of epub) now display it, and very large books no longer time out while their details load.

■ Fixes
- OPDS catalogs that group books into categories (such as BicBucStriim) now show every book instead of only the first one.
- EPUBs authored in strict XHTML that used to open to a blank or error page now render correctly.

■ Accessibility
- Read-along narration works with VoiceOver: the audio-mode toggle now announces whether narration is on instead of relying on color alone, and the animated waveform respects Reduce Motion, holding still when that setting is on.

■ Localization
- The newly added read-along narration text (audio controls, the help center topic, and VoiceOver hints) is natively translated across all 15 supported languages.