0.6.0

• Switching of current working directory to / (root) when running cronjobs
• Add cronjob elapsed time in log
• Improve distribution detection and automatic fallback
• Switch from dynamic to static linking by default (dynamic is still available with -dynamic suffix)
• Replaced and reversed --system-defaults to --no-auto (will now disable including of system default crontabs)
• Remove --threads (use env var GOMAXPROCS instead)