convert ERC20Detailed

contracts/mocks/DetailedERC20Mock.sol

 pragma solidity ^0.4.24;
 
+import "../Initializable.sol";
 import "../token/ERC20/ERC20.sol";
 import "../token/ERC20/ERC20Detailed.sol";
 
 
-contract ERC20DetailedMock is ERC20, ERC20Detailed {
+contract ERC20DetailedMock is Initializable, ERC20, ERC20Detailed {
   constructor(
     string name,
     string symbol,
     uint8 decimals
   )
-    ERC20Detailed(name, symbol, decimals)
     public
-  {}
+  {
+    ERC20Detailed.initialize(name, symbol, decimals);
+  }
 }

contracts/token/ERC20/ERC20Detailed.sol

 pragma solidity ^0.4.24;
 
+import "../../Initializable.sol";
 import "./IERC20.sol";
 
 
@@ -9,12 +10,12 @@ import "./IERC20.sol";
  * All the operations are done using the smallest and indivisible token unit,
  * just as on Ethereum all the operations are done in wei.
  */
-contract ERC20Detailed is IERC20 {
+contract ERC20Detailed is Initializable, IERC20 {
   string private _name;
   string private _symbol;
   uint8 private _decimals;
 
-  constructor(string name, string symbol, uint8 decimals) public {
+  function initialize(string name, string symbol, uint8 decimals) public initializer {
     _name = name;
     _symbol = symbol;
     _decimals = decimals;