During the CVS imports into Bzr, there were some inconsistencies introduced
(mostly that files that were deleted in CVS weren't being deleted in Bzr).
So this checkin makes the bzr repo actually consistent with the CVS repo,
including fixing permissions of files.

Fix for bug 285694: converts the underscore in body_back.gif to a hypen per Bugzilla file naming convention. r=mkanat

Patch by byron jones (glob) <bugzilla@glob.com.au>    r=myk  a=myk