whonixcheck: deleting blog.html files before re-download because rawdog does not throw an error if it fails.
whonixcheck:
- added new -autostart option
- check_whonixcheck_lastrun new function to check when whonixcheck was run for the last time
- not_again new function which will stop the script if whonixcheck was autostarted and recently completed earlier
- whonixcheck_completed new function will write last whonixcheck completition into /home/user/.whonixcheck/lastrun

whonixcheck_daily
- added -autostart if whonixcheck is run by cron

kde autostart
- added -autostart to whonixstart autostart item

workstation:
- copy into /home/user/whonixcheck_info workstation
- its a marker file and when it gets deleted no whonixcheck popup will tell that nothing was done because
  whonixcheck was recently run