Networks: Consistency of network reference for 'livenet', and removed hardcoded value.

lib/address.js

@@ -233,6 +233,7 @@ Address._transformString = function(data, network, type){
  */
 Address.fromPublicKey = function(data, network){
   var info = Address._transformPublicKey(data);
+  network = network || networks.defaultNetwork.name;
   return new Address(info.hashBuffer, network, info.type);
 };
 

lib/publickey.js

@@ -331,7 +331,7 @@ PublicKey.prototype.toDER = function(compressed) {
  * @returns {Address} An address generated from the public key
  */
 PublicKey.prototype.toAddress = function(network) {
-  return Address.fromPublicKey(this, network || 'livenet');
+  return Address.fromPublicKey(this, network);
 };
 
 /**

test/publickey.js

@@ -260,7 +260,7 @@ describe('PublicKey', function() {
 
     it('should output this known mainnet address correctly', function() {
       var pk = new PublicKey('03c87bd0e162f26969da8509cafcb7b8c8d202af30b928c582e263dd13ee9a9781');
-      var address = pk.toAddress('mainnet');
+      var address = pk.toAddress('livenet');
       address.toString().should.equal('1A6ut1tWnUq1SEQLMr4ttDh24wcbJ5o9TT');
     });
 

test/uri.js

@@ -62,7 +62,7 @@ describe('URI', function() {
 
     uri = new URI('bitcoin:1DP69gMMvSuYhbnxsi4EJEFufUAbDrEQfj');
     uri.address.should.be.instanceof(bitcore.Address);
-    uri.network.should.equal('mainnet');
+    uri.network.should.equal('livenet');
 
     uri = new URI('bitcoin:mkYY5NRvikVBY1EPtaq9fAFgquesdjqECw');
     uri.address.should.be.instanceof(bitcore.Address);
@@ -92,7 +92,7 @@ describe('URI', function() {
       address: '1DP69gMMvSuYhbnxsi4EJEFufUAbDrEQfj'
     });
     uri.address.should.be.instanceof(bitcore.Address);
-    uri.network.should.equal('mainnet');
+    uri.network.should.equal('livenet');
 
     uri = new URI({
       address: 'mkYY5NRvikVBY1EPtaq9fAFgquesdjqECw'