todo:
    - report k. boy (sub detail) -> ok
    - staff rotation
        - update level for staff
            - add script to
    - multi department access
    - merge staff same name but different department
===============================

    - compute labor cost
    - update level -> ok
    - set patient_id with domain state=='admit' -> ok
    convbal -> not yet (wait yui) -> ok but have to update memo
    post 10,000 invoices per one time  -> ask david
    patient & staff
        - split name -> not yet
    staff have multi department -> added but set have to set permission
        - many2many
    show epo(yes) in list of hd case ->ok
    matching payment > ok
    create contact from staff -> ok
    script to clear invoice -> ok