step ahead

contracts/TutorialToken.sol

@@ -1,6 +1,6 @@
-pragma solidity ^0.4.23;
+pragma solidity ^0.4.24;
 
-import "zeppelin-solidity/contracts/token/ERC20/StandardToken.sol";
+import "../installed_contracts/zeppelin-solidity/contracts/token/ERC20/StandardToken.sol";
 
 contract TutorialToken is StandardToken {
   string public name = "TutorialToken";

contracts/Wallet.sol

@@ -1,6 +1,6 @@
-pragma solidity ^0.4.23;
+pragma solidity ^0.4.24;
 
-import './Ownable.sol';
+import "../installed_contracts/zeppelin-solidity/contracts/ownership/Ownable.sol";
 
 /**
 * Wallet instantiation, is albe to run almost any Interaction: eth, toke, transactions

contracts/Will.sol

@@ -1,7 +1,7 @@
-pragma solidity ^0.4.23;
+pragma solidity ^0.4.24;
 
-import './libraries/SafeMath.sol';
-import './Ownable.sol';
+import "../installed_contracts/zeppelin-solidity/contracts/math/SafeMath.sol";
+import "../installed_contracts/zeppelin-solidity/contracts/ownership/Ownable.sol";
 
 /**
 * Vault only instantiation, only focuses on eth value

contracts/WillWallet.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.23;
+pragma solidity ^0.4.24;
 
 import './Will.sol';
 import './Wallet.sol';

installed_contracts/zeppelin-solidity/contracts/lifecycle/Pausable.sol

@@ -0,0 +1,49 @@
+pragma solidity ^0.4.24;
+
+
+import "../ownership/Ownable.sol";
+
+
+/**
+ * @title Pausable
+ * @dev Base contract which allows children to implement an emergency stop mechanism.
+ */
+contract Pausable is Ownable {
+  event Pause();
+  event Unpause();
+
+  bool public paused = false;
+
+
+  /**
+   * @dev Modifier to make a function callable only when the contract is not paused.
+   */
+  modifier whenNotPaused() {
+    require(!paused);
+    _;
+  }
+
+  /**
+   * @dev Modifier to make a function callable only when the contract is paused.
+   */
+  modifier whenPaused() {
+    require(paused);
+    _;
+  }
+
+  /**
+   * @dev called by the owner to pause, triggers stopped state
+   */
+  function pause() onlyOwner whenNotPaused public {
+    paused = true;
+    emit Pause();
+  }
+
+  /**
+   * @dev called by the owner to unpause, returns to normal state
+   */
+  function unpause() onlyOwner whenPaused public {
+    paused = false;
+    emit Unpause();
+  }
+}

installed_contracts/zeppelin-solidity/contracts/math/SafeMath.sol

@@ -0,0 +1,52 @@
+pragma solidity ^0.4.24;
+
+
+/**
+ * @title SafeMath
+ * @dev Math operations with safety checks that throw on error
+ */
+library SafeMath {
+
+  /**
+  * @dev Multiplies two numbers, throws on overflow.
+  */
+  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
+    // Gas optimization: this is cheaper than asserting 'a' not being zero, but the
+    // benefit is lost if 'b' is also tested.
+    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
+    if (a == 0) {
+      return 0;
+    }
+
+    c = a * b;
+    assert(c / a == b);
+    return c;
+  }
+
+  /**
+  * @dev Integer division of two numbers, truncating the quotient.
+  */
+  function div(uint256 a, uint256 b) internal pure returns (uint256) {
+    // assert(b > 0); // Solidity automatically throws when dividing by 0
+    // uint256 c = a / b;
+    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
+    return a / b;
+  }
+
+  /**
+  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
+  */
+  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
+    assert(b <= a);
+    return a - b;
+  }
+
+  /**
+  * @dev Adds two numbers, throws on overflow.
+  */
+  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
+    c = a + b;
+    assert(c >= a);
+    return c;
+  }
+}

installed_contracts/zeppelin-solidity/contracts/ownership/Ownable.sol

@@ -0,0 +1,64 @@
+pragma solidity ^0.4.24;
+
+
+/**
+ * @title Ownable
+ * @dev The Ownable contract has an owner address, and provides basic authorization control
+ * functions, this simplifies the implementation of "user permissions".
+ */
+contract Ownable {
+  address public owner;
+
+
+  event OwnershipRenounced(address indexed previousOwner);
+  event OwnershipTransferred(
+    address indexed previousOwner,
+    address indexed newOwner
+  );
+
+
+  /**
+   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
+   * account.
+   */
+  constructor() public {
+    owner = msg.sender;
+  }
+
+  /**
+   * @dev Throws if called by any account other than the owner.
+   */
+  modifier onlyOwner() {
+    require(msg.sender == owner);
+    _;
+  }
+
+  /**
+   * @dev Allows the current owner to relinquish control of the contract.
+   * @notice Renouncing to ownership will leave the contract without an owner.
+   * It will not be possible to call the functions with the `onlyOwner`
+   * modifier anymore.
+   */
+  function renounceOwnership() public onlyOwner {
+    emit OwnershipRenounced(owner);
+    owner = address(0);
+  }
+
+  /**
+   * @dev Allows the current owner to transfer control of the contract to a newOwner.
+   * @param _newOwner The address to transfer ownership to.
+   */
+  function transferOwnership(address _newOwner) public onlyOwner {
+    _transferOwnership(_newOwner);
+  }
+
+  /**
+   * @dev Transfers control of the contract to a newOwner.
+   * @param _newOwner The address to transfer ownership to.
+   */
+  function _transferOwnership(address _newOwner) internal {
+    require(_newOwner != address(0));
+    emit OwnershipTransferred(owner, _newOwner);
+    owner = _newOwner;
+  }
+}