Log error stack traces

// FREEBIE

js/background.js

@@ -142,6 +142,7 @@
         function onError(ev) {
             var e = ev.error;
             console.log(e);
+            console.log(e.stack);
 
             if (e.name === 'HTTPError' && (e.code == 401 || e.code == 403)) {
                 extension.install();

js/models/conversations.js

@@ -107,6 +107,7 @@
             var keyErrors = [];
             _.each(errors, function(e) {
                 console.log(e);
+                console.log(e.stack);
                 if (e.error.name === 'OutgoingIdentityKeyError') {
                     keyErrors.push(e.error);
                 }