*ver 8.8.4

- Fix not to display the subtitle at Android 10

*ver 8.8.3

- Fix the crash problem at previous version

* ver 8.8.1

- Revert the YouTube play at last view position

* ver 8.8.0

- Include YouTube player

- Add Playback speed change (Support form Android 6.0)

* ver 8.7.2

- Fix the delete function

- Refine the pop-up menu

* ver 8.7.1

- Fix not to display the Hierarchical folder list

* ver 8.7.0

- Improve stability

- Fix a crash at file share

- Update AD library