Rewrote abs documentation without funcx, so now :ocv:funcx: is used only for operator()
Rewrote abs documentation without funcx, so now :ocv:funcx: is used only for operator()

apavlenko/opencv,opencv/opencv,apavlenko/opencv,opencv/opencv,apavlenko/opencv,opencv/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,opencv/opencv