Digital Signage System

+ New video render engineer be introduced. (May not compatible with existing video files.)
DO NOT use on the board released before May 2017.
+ Synchronize the weather city name with server.
+ Add multi line display mode for subtitle text.
+ Append the text entry effect for sensor item.
+ Text entry effect for weather item support more effects.
+ Skip the weather item automatically when weather info is not available.
+ Able to specify the image format for live screen stream function.
+ Increase the internal command process speed.
+ Add the "Virtual Mode" for power control function. Which will turn on or off the screen by set a black background on the software.
+ Improve the brightness LUX conversion function.

+ Able to receive the media file which size over 2GB from the editor (Need PVEditor version >= 0.16).
+ Able to disable the playlist auto clear procedure from configuration.
- Fixed the issue that expired playlists not showing on the WEB system. (happens since version 160315).
- Fixed the alignment issue of weather, sensor and clock screen on non-antialiasing mode. (happens since version 160712).
- Fixed the sensor value display issue (happens since version 160721).
- Fixed the weather info display issue (happens since version 160712).

- Fixed the program freeze issue in some condition (happens since version 160712).

+ Support the outline effect for text.
+ Improve the strategy of delete useless playlists.
+ Make the brightness converation table more smooth.
+ Feedback the version info of YOCTO sensor.

+ Able to read the ID of NOVASTAR led controller.
+ Support the text alignment for sensor, clock, and weather.
- Fixed the clock format when display AM/PM.

+ Improve the load speed of the USB disk.
+ Make the sensor brightness convert table more accurate.
- Fixed the issue that some times the player unable to display the new playlist automatically until restart.
- Fixed the wrong play behave on synchronize mode.
- Fixed the configure file auto removement function.

+ Able to send back the name of playing script with socket communication.
- Fixed the character display issue when using pixel font.

- Fix the issue that the program with specified play time can not be display normally.