Fix up translations after string freeze break
    
    Commit 1b33435081074746ba3408def87b3f119ce919b6
    fixed a problem with GDM in low resolution machines.
    
    While this commit is a valid and important bug fix,
    it unfortunately, broke string freze.
    
    See:
    
    http://mail.gnome.org/archives/gdm-list/2010-June/msg00014.html
    
    This commit manually fixes up all the msgids and msgstrs so that
    the old transitions still work.
    
    Note, some of the translations get plurality wrong for "Session"
    (like the original C string did before commit 1b33435).  That's
    not optimal, but not any worse than before.