anchor.diff:  
    fairian_name |  balance  
   --------------+-----------
  - alice        |  38.22213
  + alice        | 38.222130
    bob          | 48.070724
    cathy        | 19.109904
    david        | 19.110119
  
positive.code: 
  == Fairwinds Game Tutorial B - The Cash Journal
  
  The cash_journal records transactions involving faircoin. For 
  example all executed buy and sell transactions, bond issues 
  and redemptions, etc. 
  
  
negative.code: 
  Bob borrows money by issuing ('i.e.', selling) a bond, that is, he makes a
  promise to repay a fixed amount at some future time. 'Fairian' bonds
  always have a face value of fc1000 (1000 'Faircoin') and trade at a
  discount from this. That is, in 'Fairwinds', bonds are more similar to
  real-world Treasury Bills, having no coupon, than to Treasury Bonds
  ('i.e.' real-world bonds pay periodic interest as well as derive value by 
  