Connection: always stringify and un-escape gmail labels in responses

lib/Connection.js

@@ -37,6 +37,7 @@ var MAX_INT = 9007199254740992,
     RE_NUM_RANGE = /^(?:[\d]+|\*):(?:[\d]+|\*)$/,
     RE_BACKSLASH = /\\/g,
     RE_DBLQUOTE = /"/g,
+    RE_ESCAPE = /\\\\/g,
     RE_INTEGER = /^\d+$/;
 
 function Connection(config) {
@@ -1102,8 +1103,14 @@ Connection.prototype._resUntagged = function(info) {
         j = keyslen;
         while (--j >= 0) {
           if (keys[j].toUpperCase() === toget[i]) {
-            if (!RE_BODYPART.test(toget[i]))
+            if (!RE_BODYPART.test(toget[i])) {
+              if (toget[i] === 'X-GM-LABELS') {
+                var labels = info.text[keys[j]];
+                for (var k = 0, lenk = labels.length; k < lenk; ++k)
+                  labels[k] = (''+labels[k]).replace(RE_ESCAPE, '\\');
+              }
               attrs[FETCH_ATTR_MAP[toget[i]]] = info.text[keys[j]];
+            }
             toget.splice(i, 1);
             break;
           }