ECMS-6113: [IE8, 9] Weird encoding of file name with accent characters

Problem analysis:
- In IE, file name is encoded twice time. The first time, the file name is encoded before saving file list and the twice during upload progress.

Fix description:
- Decode file name in IE when saving list file to upload
ECMS-6222: HTML code is displayed on News page

Fix description:

  - Only escape XSS for description field