add force update command to rug-ctl

Change-Id: I140fe1fde6c7afd4747fa128d6d91069ef3845ef
pep8 fixes

Change-Id: I27bbfa1542864bd6194352945add00cdecccfcc5
Merge pull request #113 from dhellmann/force-update-command

add force update command to rug-ctl