rename js files to js.erb files

app/assets/javascripts/src/Metamaps.js.erb

@@ -4282,7 +4282,7 @@ Metamaps.Synapse = {
             node1 = synapsesToCreate[i];
             topic1 = node1.getData('topic');
             synapse = new Metamaps.Backbone.Synapse({
-                desc: Metamaps.Create.newSynapse.description || "",
+                desc: Metamaps.Create.newSynapse.description,// || "",
                 node1_id: topic1.isNew() ? topic1.cid : topic1.id,
                 node2_id: topic2.isNew() ? topic2.cid : topic2.id,
             });