Update ballot contract to solidity 0.4.0.

assets/js/ballot.sol.js

@@ -24,7 +24,8 @@
 
 var multi = function (func) { return func.toString().match(/[^]*\/\*([^]*)\*\/\}$/)[1]; };
 
-var BALLOT_EXAMPLE = multi(function () { /*contract Ballot {
+var BALLOT_EXAMPLE = multi(function () { /*pragma solidity ^0.4.0;
+contract Ballot {
 
     struct Voter {
         uint weight;
@@ -40,21 +41,21 @@ var BALLOT_EXAMPLE = multi(function () { /*contract Ballot {
     mapping(address => Voter) voters;
     Proposal[] proposals;
 
-    // Create a new ballot with $(_numProposals) different proposals.
+    /// Create a new ballot with $(_numProposals) different proposals.
     function Ballot(uint8 _numProposals) {
         chairperson = msg.sender;
         voters[chairperson].weight = 1;
         proposals.length = _numProposals;
     }
 
-    // Give $(voter) the right to vote on this ballot.
-    // May only be called by $(chairperson).
+    /// Give $(voter) the right to vote on this ballot.
+    /// May only be called by $(chairperson).
     function giveRightToVote(address voter) {
         if (msg.sender != chairperson || voters[voter].voted) return;
         voters[voter].weight = 1;
     }
 
-    // Delegate your vote to the voter $(to).
+    /// Delegate your vote to the voter $(to).
     function delegate(address to) {
         Voter sender = voters[msg.sender]; // assigns reference
         if (sender.voted) return;
@@ -70,7 +71,7 @@ var BALLOT_EXAMPLE = multi(function () { /*contract Ballot {
             delegate.weight += sender.weight;
     }
 
-    // Give a single vote to proposal $(proposal).
+    /// Give a single vote to proposal $(proposal).
     function vote(uint8 proposal) {
         Voter sender = voters[msg.sender];
         if (sender.voted || proposal >= proposals.length) return;