Several fixes

Hey, 
 created several fixes in the following topics:
   - traffic monitoring (parsing and wrong number format, check it, doesnt it affect all of you?)
   - hyperVM did not set root password. I dont know since when, but the code had no such feature at creation time.
   - added minimal support for turnkeylinux.org openvz images. Check it, great feat! 

Do we have a mailing list somewhere?