Created by: tink2123

• Fixed:

1. http://newicafe.baidu.com:80/issue/DLTP-1951/show?from=page
2. http://newicafe.baidu.com:80/issue/DLTP-1940/show?from=page
3. http://newicafe.baidu.com:80/issue/DLTP-1947/show?from=page

• Add FAQ for lod_tensor