1. Add TxProposals to mocha test page

2. The jshint tool found some instances where var was declared twice within a function. Seemed to originate from copy/paste-style coding. Most were unambiguously intended for a single block within the function. In a few cases, two declarations were consumed by one later reference. In those cases, I removed the duplicate var or I refactored slightly.

test/index.html

@@ -20,6 +20,7 @@
     <script src="test.PrivateKey.js"></script>
     <script src="test.PublicKeyRing.js"></script>
     <script src="test.storage.LocalEncrypted.js"></script>
+    <script src="test.TxProposals.js"></script>
     <script src="test.Wallet.js"></script>
     <script src="test.WalletFactory.js"></script>
     <script src="test.performance.js"></script>

test/test.PublicKeyRing.js

@@ -225,14 +225,15 @@ describe('PublicKeyRing model', function() {
 
   it('should merge backup', function() {
     var w = getCachedW().w;
+    var hasChanged;
 
     w.copayersBackup = ["a", "b"];
-    var hasChanged = w.mergeBackups(["b", "c"]);
+    hasChanged = w.mergeBackups(["b", "c"]);
     w.copayersBackup.length.should.equal(3);
     hasChanged.should.equal(true);
 
     w.copayersBackup = ["a", "b", "c"];
-    var hasChanged = w.mergeBackups(["b", "c"]);
+    hasChanged = w.mergeBackups(["b", "c"]);
     w.copayersBackup.length.should.equal(3);
     hasChanged.should.equal(false);
   });
@@ -348,9 +349,10 @@ describe('PublicKeyRing model', function() {
     var config = {
       networkName: 'livenet',
     };
+    var copayers;
     var w = new PublicKeyRing(config);
     should.exist(w);
-    var copayers = [];
+    copayers = [];
     for (var i = 0; i < 2; i++) {
       w.isComplete().should.equal(false);
       w.addCopayer(getNewEpk());
@@ -361,7 +363,7 @@ describe('PublicKeyRing model', function() {
       id: w.id,
     });
     should.exist(w);
-    var copayers = [];
+    copayers = [];
     for (var i = 0; i < 3; i++) {
       w2.isComplete().should.equal(false);
       w2.addCopayer(getNewEpk());

test/test.WalletFactory.js

@@ -298,7 +298,7 @@ describe('WalletFactory model', function() {
     var w = wf.create({
       name: 'test wallet'
     });
-    var ws = wf.getWallets();
+    ws = wf.getWallets();
     ws.length.should.equal(1);
     ws[0].name.should.equal('test wallet');
   });