update contracts and config

contracts/ownership/Ownable.sol

 pragma solidity ^0.4.21;
 
-import 'zos-upgradeability/contracts/migrations/Initializable.sol';
+import 'zos-lib/contracts/migrations/Initializable.sol';
 
 /**
  * @title Ownable

contracts/token/ERC20/DetailedERC20.sol

 pragma solidity ^0.4.21;
 
 import "./ERC20.sol";
-import 'zos-upgradeability/contracts/migrations/Initializable.sol';
+import 'zos-lib/contracts/migrations/Initializable.sol';
 
 contract DetailedERC20 is Initializable, ERC20 {
   string public name;

contracts/token/ERC20/TokenTimelock.sol

 pragma solidity ^0.4.21;
 
 import "./SafeERC20.sol";
-import "zos-upgradeability/contracts/migrations/Initializable.sol";
+import "zos-lib/contracts/migrations/Initializable.sol";
 
 /**
  * @title TokenTimelock

contracts/token/ERC20/TokenVesting.sol

@@ -6,7 +6,7 @@ import "./ERC20Basic.sol";
 import "./SafeERC20.sol";
 import "../../ownership/Ownable.sol";
 import "../../math/SafeMath.sol";
-import 'zos-upgradeability/contracts/migrations/Initializable.sol';
+import 'zos-lib/contracts/migrations/Initializable.sol';
 
 
 /**

contracts/token/ERC721/ERC721Token.sol

@@ -2,7 +2,7 @@ pragma solidity ^0.4.21;
 
 import "./ERC721.sol";
 import "./ERC721BasicToken.sol";
-import "zos-upgradeability/contracts/migrations/Initializable.sol";
+import "zos-lib/contracts/migrations/Initializable.sol";
 
 
 /**

package.json

@@ -63,6 +63,7 @@
   },
   "dependencies": {
     "dotenv": "^4.0.0",
-    "zos-upgradeability": "git://github.com/zeppelinos/upgradeability-lib.git"
+    "zos": "^0.3.7",
+    "zos-lib": "0.0.5"
   }
 }

truffle-config.js

@@ -24,8 +24,11 @@ module.exports = {
       network_id: '*', // eslint-disable-line camelcase
     },
     ropsten: {
-      provider: ropstenProvider,
-      network_id: 3, // eslint-disable-line camelcase
+      host: 'localhost',
+      network_id: '3',
+      port: 8555,
+      gas: 4700000,
+      gasPrice: 10e9,
     },
     coverage: {
       host: 'localhost',