Print exceptions when saving data fails in admin UI
    
    There were places where a broad exception was caught when saving
    administrative changes but the actual exception wasn't logged. The
    user was presented only with a 'Failed to save data!' message.
    
    https://fedorahosted.org/ipsilon/ticket/39
    
    Signed-off-by: Rob Crittenden <rcritten@redhat.com>
    Reviewed-by: Simo Sorce <simo@redhat.com>