New features:
1. Import posts from Evernote
2. Import posts from Blogger
3. Import posts from WordPress
4. Import content from RSS feed
5. Convert PDF to slideshow
6. Thumbnail view for books
7. Thumbnail view for pages
8. Copy and paste pages (tap and hold)
9. Access shared folder of Google Drive
10. Set display width of image
11. Edit cover image and book information without leaving publish screen
12. Better support for Google Docs, Sheets, Slides, and Drawing
13. Revamp Add Element Interface
14. Support online image
