Fix setup_server.bash for BSD/Mac OS X
Fix setup_server.bash for BSD/Mac OS X

On Mac OS X and BSD the setup_server.bash script didn't run properly. The tool readlink, that has been uses to determine the path of the script to find the pki dircetory, are diffrent on BSD and its derivates ,including Mac OS X. On BSD you can use realpath. Mac OS X unfortunately lake this feature. So you have to fiddle with the path.

Tested on Linux (Archlinux); Mac OS X 10.10 and Freebsd 10.

goldenHairDafo/taskd,goldenHairDafo/taskd,goldenHairDafo/taskd,goldenHairDafo/taskd,goldenHairDafo/taskd