Update tests for entrypoints

test/contracts/dutch_auction.aes

@@ -10,13 +10,13 @@ contract DutchAuction =
                    sold         : bool }
 
   // Add to work around current lack of predefined functions
-  private stateful function spend(to, amount) =
+  stateful function spend(to, amount) =
     let total = Contract.balance
     Chain.spend(to, amount)
     total - amount
 
   // TTL set by user on posting contract, typically (start - end ) div dec
-  public function init(beneficiary, start, decrease) : state =
+  entrypoint init(beneficiary, start, decrease) : state =
     require(start > 0 && decrease > 0, "bad args")
     { start_amount = start,
       start_height = Chain.block_height,
@@ -27,7 +27,7 @@ contract DutchAuction =
   // -- API
 
   // We are the buyer... interesting case to buy for someone else and keep 10%
-  public stateful function bid() =
+  stateful entrypoint bid() =
     require( !(state.sold), "sold")
     let cost =
       state.start_amount - (Chain.block_height - state.start_height) * state.dec