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
ECMS-6329: Failed to view big MS Office files with PDFViewer

Problem analysis:
* When a file is too big, JODConverter fails to generate the corresponding PDF file.
  That raises exception in PDFViewer when getting the maximal Page number of PDF file.

Fix description:
* Invoke JODConverter only when the original file is small enough (5MB).
* Handle correctly when there is no PDF file from JODConverter.
ECMS-6362: InternalLinkUpgradePlugin does not upgrade all links