[pabloso]

Changelog firmware 2.1
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Reading:
1. Optimize UI;
2. Simplify the note-taking operation. Now allow writing directly by
stylus and turn pages or menu by fingers;
3. Improve PDF saving speed;
4. Add color writing to PDF functions, including black, white, red,
blue and green(visible after exporting to PC)
5. Sidenote now is associated with documents instead of pages.
6. Add word contrast setting.
7. Add touch area custom function(the screen is divided into 9
areas, everyone can be customized except for the central menu) ;

Note:
1. Optimize the UI of note management;
2. Add handwriting recognition function(Internet connection required
at the first time);
3. Add color writing to PDF functions, including black, white, red,
blue and green(visible after exporting to PC)
4. Add template download from cloud;
5. Allow turning pages by fingers;
6. Now automatically add a new page when to turn after the last page.

System:
1. Add directory pattern to the library, display files by storage
directory(only display files in the specified folder);
2. The default language of the handwriting recognition function is
English. Need to download packages for other languages;
3. Add assistive touch for settings;
4. Allow to change settings for optimization while using
apps(assistive touch required);
5. Add functions of app background and font color optimization.
Add category for apps in App store. Multiple files download is supported