Privacy Screen Filter

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(version 1.1)
- Slide down to launch this app.(refer to 'HOW TO USE?' within app)
- for some tablets, fixing failure to preparing screen image.
(version 1.2)
- change design layout
(version 1.3)
- multi-language support, fix interference btw SCREEN & settings
(version 1.4)
- modify some design, minimize advertisement.