Keep Light and Internet

Aug 10, 2016

# Version 1.7 (10/08/2016):
- Set brightness level while keeping the screen light.
- Upgrade interface.
- Use esier. (see new picture)
- Fix bug.

# Version 1.5:
- Show Remain time on status bar.
- Use easily.
- Fix some error.

# Version 1.2:
- Add function: sleep timer modes keeping light and connection.
- Fix some error.
- Upgrade interface.