Fix styling in Migrations.sol file

Author: justinkchen

contracts/Migrations.sol

@@ -1,23 +1,24 @@
-pragma solidity ^0.4.11;
+pragma solidity 0.4.18;
+
 
 contract Migrations {
   address public owner;
-  uint public last_completed_migration;
+  uint public lastCompletedMigration;
 
   modifier restricted() {
     if (msg.sender == owner) _;
   }
 
-  function Migrations() {
+  function Migrations() public {
     owner = msg.sender;
   }
 
-  function setCompleted(uint completed) restricted {
-    last_completed_migration = completed;
+  function setCompleted(uint completed) public restricted {
+    lastCompletedMigration = completed;
   }
 
-  function upgrade(address new_address) restricted {
-    Migrations upgraded = Migrations(new_address);
-    upgraded.setCompleted(last_completed_migration);
+  function upgrade(address newAddress) public restricted {
+    Migrations upgraded = Migrations(newAddress);
+    upgraded.setCompleted(lastCompletedMigration);
   }
 }