New option on stat page, don't plot 0

[vrampal]

Hello, I have connected some weather sensors to my Raspberry Pi and I use RPi-Monitor and Python script to read and archive data. On heavy load RPi-Monitor is not able to retrieve the data and read value 0. Would it be possible to have an option on graph to not plot 0 values ? I know it's a change inside JavaScriptRRD library not really for RPi-Minitor. (BTW I am also working on a kernel module to read data to avoid timeout). Regards, Vincent