ECMS-6297: Impossible to open uploaded file in Chinese from Upload Status box

Fix description:
	- Clean name in link to uploaded file
	- Clean name before checking existant.
ECMS-6297: Impossible to open uploaded file with file name not in Latin1 character set from Upload Status box

Fix description
- Correct file name
ECMS-6297: Impossible to open uploaded file with file name not in Latin1 character set from Upload Status box

Fix description:
- Avoid mis-parsing XML file in IE