upgraded

Author: vinay035

contracts/AirDrop.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.19;
+pragma solidity ^0.4.24;
 
 /**
  * @title Token
@@ -20,7 +20,7 @@ contract Ownable {
    * @dev The Ownable constructor sets the original `owner` of the contract to the sender
    * account.
    */
-  function Ownable() {
+  constructor() public {
     owner = msg.sender;
   }
 
@@ -40,7 +40,7 @@ contract Ownable {
    */
   function transferOwnership(address newOwner) onlyOwner public {
     require(newOwner != address(0));
-    OwnershipTransferred(owner, newOwner);
+    emit OwnershipTransferred(owner, newOwner);
     owner = newOwner;
   }
 
@@ -54,7 +54,7 @@ contract AirDrop is Ownable {
   /*
     constructor function to set token address
    */
-  function AirDrop(address _tokenAddress){
+  constructor(address _tokenAddress) public {
     tokenInstance = Token(_tokenAddress);
   }
 

contracts/Attestation.sol

@@ -1,11 +1,11 @@
-pragma solidity ^0.4.19;
+pragma solidity ^0.4.24;
 
 contract Attestation {
 
     event Attest(address _address,string _type,string _data);
 
     function write(string _type,string _data) public returns (bool) {
-        Attest(msg.sender,_type,_data);
+        emit Attest(msg.sender,_type,_data);
         return true;
     }
 }

contracts/SPRINGToken.sol

@@ -31,7 +31,7 @@ contract Ownable {
    * @dev The Ownable constructor sets the original `owner` of the contract to the sender
    * account.
    */
-  function Ownable() {
+  constructor() public {
     owner = msg.sender;
   }
 
@@ -145,7 +145,7 @@ contract StandardToken is ERC20,Pausable {
     }
 
     /**
-    * @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
+    * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
     * This only works when the allowance is 0. Cannot be used to change allowance.
     * https://github.com/ethereum/EIPs/issues/738#issuecomment-336277632
     * @param _spender The address which will spend the funds.
@@ -227,8 +227,8 @@ contract SPRINGToken is StandardToken {
   uint256 public totalSupply;
   uint256 public maxSupply;
 
-  /* Contructor function to set maxSupply*/
-  function SPRINGToken(uint256 _maxSupply){
+  /* Constructor function to set maxSupply*/
+  constructor(uint256 _maxSupply) public {
     maxSupply = _maxSupply;
   }
 

contracts/VanityURL.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.19;
+pragma solidity ^0.4.24;
 
 /**
 * Contract for Vanity URL on SpringRole
@@ -21,7 +21,7 @@ contract Ownable {
    * @dev The Ownable constructor sets the original `owner` of the contract to the sender
    * account.
    */
-  function Ownable() {
+  constructor() public {
     owner = msg.sender;
   }
 
@@ -41,7 +41,7 @@ contract Ownable {
    */
   function transferOwnership(address newOwner) onlyOwner public {
     require(newOwner != address(0));
-    OwnershipTransferred(owner, newOwner);
+    emit OwnershipTransferred(owner, newOwner);
     owner = newOwner;
   }
 
@@ -80,15 +80,15 @@ contract Pausable is Ownable {
    */
   function pause() onlyOwner whenNotPaused public {
     paused = true;
-    Pause();
+    emit Pause();
   }
 
   /**
    * @dev called by the owner to unpause, returns to normal state
    */
   function unpause() onlyOwner whenPaused public {
     paused = false;
-    Unpause();
+    emit Unpause();
   }
 }
 
@@ -110,11 +110,6 @@ contract VanityURL is Ownable,Pausable {
   mapping (string => string) vanity_springrole_id_mapping;
   // This declares a state variable that mapping for Springrole ID to vanityURL
   mapping (string => string) springrole_id_vanity_mapping;
-  /*
-    constructor function to set token address & Pricing for reserving and token transfer address
-   */
-  function VanityURL(){
-  }
 
   event VanityReserved(address _to, string _vanity_url);
   event VanityTransfered(address _to,address _from, string _vanity_url);
@@ -163,7 +158,7 @@ contract VanityURL is Ownable,Pausable {
     springrole_id_vanity_mapping[_springrole_id] = _vanity_url;
     /* adding to address vanity mapping */
     address_vanity_mapping[msg.sender] = _vanity_url;
-    VanityReserved(msg.sender, _vanity_url);
+    emit VanityReserved(msg.sender, _vanity_url);
   }
 
   /*
@@ -224,7 +219,7 @@ contract VanityURL is Ownable,Pausable {
     vanity_springrole_id_mapping[_vanity_url]=_springrole_id;
     springrole_id_vanity_mapping[_springrole_id]=_vanity_url;
 
-    VanityReserved(msg.sender, _vanity_url);
+    emit VanityReserved(msg.sender, _vanity_url);
   }
 
   /*
@@ -235,7 +230,7 @@ contract VanityURL is Ownable,Pausable {
     require(bytes(address_vanity_mapping[msg.sender]).length != 0);
     address_vanity_mapping[_to] = address_vanity_mapping[msg.sender];
     vanity_address_mapping[address_vanity_mapping[msg.sender]] = _to;
-    VanityTransfered(msg.sender,_to,address_vanity_mapping[msg.sender]);
+    emit VanityTransfered(msg.sender,_to,address_vanity_mapping[msg.sender]);
     delete(address_vanity_mapping[msg.sender]);
   }
 
@@ -249,7 +244,7 @@ contract VanityURL is Ownable,Pausable {
       if(vanity_address_mapping[_vanity_url]  != address(0x0))
       {
         /* Sending Vanity Transfered Event */
-        VanityTransfered(vanity_address_mapping[_vanity_url],_to,_vanity_url);
+        emit VanityTransfered(vanity_address_mapping[_vanity_url],_to,_vanity_url);
         /* delete from address mapping */
         delete(address_vanity_mapping[vanity_address_mapping[_vanity_url]]);
         /* delete from vanity mapping */
@@ -262,7 +257,7 @@ contract VanityURL is Ownable,Pausable {
       else
       {
         /* sending VanityReserved event */
-        VanityReserved(_to, _vanity_url);
+        emit VanityReserved(_to, _vanity_url);
       }
       /* add new address to mapping */
       vanity_address_mapping[_vanity_url] = _to;
@@ -285,7 +280,7 @@ contract VanityURL is Ownable,Pausable {
     /* delete from vanity springrole id mapping */
     delete(vanity_springrole_id_mapping[_vanity_url]);
     /* sending VanityReleased event */
-    VanityReleased(_vanity_url);
+    emit VanityReleased(_vanity_url);
   }
 
   /*