Display the transaction ref in the bank statement reconciliation view

Now, only the name and the ref are displayed. Mostly useful with
https://github.com/OCA/bank-statement-reconcile/pull/54

base_transaction_id/static/src/js/account_widgets.js

@@ -0,0 +1,11 @@
+openerp.base_transaction_id = function (instance) {
+
+    instance.web.account.bankStatementReconciliationLine.include({
+        decorateMoveLine: function(line, currency_id) {
+            this._super(line, currency_id);
+            if (line.transaction_ref) {
+                line.q_label += ' (' + line.transaction_ref + ')';
+            }
+        },
+    });
+};