index page, camera options: add HDMI-Preview ON/OFF option
index page, camera options: add HDMI-Preview ON/OFF option

This requires updating raspimjpeg binary to include the following patch:
https://github.com/roberttidey/userland/pull/14

silvanmelchior/RPi_Cam_Web_Interface,silvanmelchior/RPi_Cam_Web_Interface,silvanmelchior/RPi_Cam_Web_Interface,silvanmelchior/RPi_Cam_Web_Interface,silvanmelchior/RPi_Cam_Web_Interface