evernote导入丢失创建和更新时间 #75

https://github.com/leanote/desktop-app/issues/75

node_modules/common.js

@@ -48,6 +48,9 @@ var Common = {
 		
 		return false;
 	},
+	isValidDate: function (d) {
+		return Object.prototype.toString.call(d) === "[object Date]" && !isNaN(d.getTime());
+	},
 	_uuid: 1,
 	uuid: function() {
 		this._uuid++;

node_modules/note.js

@@ -56,14 +56,18 @@ var Note = {
 		// console.log(noteOrContent);
 
 		var date = new Date();
-		noteOrContent.UpdatedTime = date;
+		if (!Common.isValidDate(noteOrContent.UpdatedTime)) {
+			noteOrContent.UpdatedTime = date;
+		}
 
 		noteOrContent['IsDirty'] = true; // 已修改
 		noteOrContent['LocalIsDelete'] = false;
 
 		// 新建笔记, IsNew还是保存着
 		if(noteOrContent.IsNew) {
-			noteOrContent.CreatedTime = date;
+			if (!Common.isValidDate(noteOrContent.CreatedTime)) {
+				noteOrContent.CreatedTime = date;
+			}
 			noteOrContent['IsTrash'] = false;
 			delete noteOrContent['IsNew'];
 			noteOrContent['LocalIsNew'] = true;