SLIDER-38 clean up some funtest code
SLIDER-38 move properties in POM around
SLIDER-38 make setting up ip and headless options part of JavaCommandLineBuilder, "builder" style
SLIDER-38 add instructions on zk teardown 
SLIDER-38 add utility CoreFileSystem::fileToPath() method. Nothing complex, just keeps it in one place 
Merge branch 'feature/SLIDER-38-bbuzz' into develop
Merge branch 'develop' of https://git-wip-us.apache.org/repos/asf/incubator-slider into develop