updated (attr 'size' as integer type)

Author: Vladlukhanin

src/modules/qbChatHelpers.js

@@ -165,7 +165,11 @@ var qbChatHelpers = {
                     var attributes = extraParams.childNodes[i].attributes;
 
                     for (var j = 0, len2 = attributes.length; j < len2; j++) {
-                        attach[attributes[j].name] = attributes[j].value;
+                        if (attributes[j].name === 'size'){
+                            attach[attributes[j].name] = parseInt(attributes[j].value);
+                        } else {
+                            attach[attributes[j].name] = attributes[j].value;
+                        }
                     }
 
                     attachments.push(attach);