fixes for StandardToken

contracts/Bounty.sol

 pragma solidity ^0.4.0;
 import './PullPayment.sol';
+import './examples/ExampleToken.sol';
 
 /*
  * Bounty
- * This bounty will pay out if you can cause a Token's balance
+ * This bounty will pay out if you can cause a ExampleToken's balance
  * to be lower than its totalSupply, which would mean that it doesn't 
  * have sufficient ether for everyone to withdraw.
  */
@@ -16,16 +17,16 @@ contract Bounty is PullPayment {
     if (claimed) throw;
   }
 
-  function createTarget() returns(Token) {
-    Token target = new Token(0);
+  function createTarget() returns(ExampleToken) {
+    ExampleToken target = new ExampleToken();
     researchers[target] = msg.sender;
     return target;
   }
 
-  function claim(Token target) {
+  function claim(ExampleToken target) {
     address researcher = researchers[target];
     if (researcher == 0) throw;
-    // check Token contract invariants
+    // check ExampleToken contract invariants
     if (target.totalSupply() == target.balance) {
       throw;
     }

contracts/ERC20.sol

@@ -4,14 +4,13 @@ pragma solidity ^0.4.0;
 // see https://github.com/ethereum/EIPs/issues/20
 
 contract ERC20 {
-    function totalSupply() constant returns (uint);
-    function balanceOf(address who) constant returns (uint);
-    function allowance(address owner, address spender) constant returns (uint);
+  uint public totalSupply;
+  function balanceOf(address who) constant returns (uint);
+  function allowance(address owner, address spender) constant returns (uint);
 
-    function transfer(address to, uint value) returns (bool ok);
-    function transferFrom(address from, address to, uint value) returns (bool ok);
-    function approve(address spender, uint value) returns (bool ok);
-
-    event Transfer(address indexed from, address indexed to, uint value);
-    event Approval(address indexed owner, address indexed spender, uint value);
+  function transfer(address to, uint value) returns (bool ok);
+  function transferFrom(address from, address to, uint value) returns (bool ok);
+  function approve(address spender, uint value) returns (bool ok);
+  event Transfer(address indexed from, address indexed to, uint value);
+  event Approval(address indexed owner, address indexed spender, uint value);
 }

contracts/StandardToken.sol

@@ -12,11 +12,10 @@ import './SafeMath.sol';
  */
 contract StandardToken is ERC20, SafeMath {
 
-  mapping(address => uint256) balances;
-  mapping (address => mapping (address => uint256)) allowed;
-  uint256 public totalSupply;
+  mapping(address => uint) balances;
+  mapping (address => mapping (address => uint)) allowed;
 
-  function transfer(address _to, uint256 _value) returns (bool success) {
+  function transfer(address _to, uint _value) returns (bool success) {
     if (balances[msg.sender] < _value) {
       throw;
     } 
@@ -26,7 +25,7 @@ contract StandardToken is ERC20, SafeMath {
     return true;
   }
 
-  function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
+  function transferFrom(address _from, address _to, uint _value) returns (bool success) {
     var _allowance = allowed[_from][msg.sender];
     if (balances[_from] < _value ||
         _allowance < _value) {
@@ -40,17 +39,17 @@ contract StandardToken is ERC20, SafeMath {
     return true;
   }
 
-  function balanceOf(address _owner) constant returns (uint256 balance) {
+  function balanceOf(address _owner) constant returns (uint balance) {
     return balances[_owner];
   }
 
-  function approve(address _spender, uint256 _value) returns (bool success) {
+  function approve(address _spender, uint _value) returns (bool success) {
     allowed[msg.sender][_spender] = _value;
     Approval(msg.sender, _spender, _value);
     return true;
   }
 
-  function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
+  function allowance(address _owner, address _spender) constant returns (uint remaining) {
     return allowed[_owner][_spender];
   }
 

contracts/examples/ExampleToken.sol

+pragma solidity ^0.4.0;
+
+import "../StandardToken.sol";
+
+contract ExampleToken is StandardToken {
+
+    string public name = "ExampleToken";
+    string public symbol = "TOK";
+    uint public decimals = 18;
+
+    // 1 ether = 500 example tokens 
+    uint PRICE = 500;
+    
+
+    function () payable {
+        createTokens(msg.sender);
+    }
+    
+    function createTokens(address recipient) payable {
+        if (msg.value == 0) throw;
+    
+        uint tokens = safeMul(msg.value, getPrice());
+
+        totalSupply = safeAdd(totalSupply, tokens);
+        balances[recipient] = safeAdd(balances[recipient], tokens);
+    }
+    
+    // replace this with any other price function
+    function getPrice() constant returns (uint result){
+      return PRICE;
+    }
+}

package.json

@@ -5,7 +5,7 @@
   "main": "truffle.js",
   "devDependencies": {},
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "truffle test",
     "install": "scripts/install.sh"
   },
   "repository": {