So, we got 2.3.1-2020032715
New features:
1. Zreader:
* Add traditional and simplified functions
* Add vertical function
* Add single book display multiple fonts function
2. PDF forbidden mode:
* Added support for side note notes
* Add select page jump function
3. Minimalist desktop:
* New icon arrangement for fast switching
* New application management function (supports hidden list)
4. Rotation adds direction selection function
Optimization function:
1. Optimize the probabilistic bookshelf not to display books
2. Note sharing to local supports immediate jump function
3. The problem of deleted books will be displayed on the bookshelf again
4. The problem that the handwriting cannot be saved (the handwritten content of the previous page is still displayed after turning page of the pdf book)
5. Fix the problem that the book signature is restored after reopening the bookmark
6. Fix the problem of encryption / crash/unselectable words in individual books;
7. Other problems are fixed and experience optimization
Couldn't find update package in the filesystem
