fix: do not remove scripts from outputs

lib/model/txproposal.js

@@ -34,7 +34,7 @@ TxProposal.create = function(opts) {
   x.payProUrl = opts.payProUrl;
   x.changeAddress = opts.changeAddress;
   x.outputs = _.map(opts.outputs, function(output) {
-    return _.pick(output, ['amount', 'toAddress', 'message']);
+    return _.pick(output, ['amount', 'toAddress', 'message', 'script']);
   });
   x.outputOrder = _.shuffle(_.range(x.outputs.length + 1));
   x.walletM = opts.walletM;