SLIDER-350 switch to hadoop 3.0.0 for testing
SLIDER-350 add strict test for windows utils being valid
SLIDER-350 use gawk as awk implementation for windows; add checks for that and xargs on the command line
SLIDER-350 use gawk as awk implementation for windows; add checks for that and xargs on the command line
SLIDER-350 windows support
SLIDER-377 switch to branch 2.6 to see if failures arise
Merge branch 'feature/SLIDER-377-windows' into develop