update library iText 2.0.1 to iText 2.1.7

[Gil Portenseigne]

Hi,

I'm trying to use JasperReport 3.6.0 and this project needs at least
iText 2.1.0 library. So I propose to update iText lib to the latest
compatible with ofbiz ie : iText 2.1.7 (cf JIRA 3407).

The problem is that i need to test the new library, to see if the update
could create some errors in existing ofbiz utilities using iText.
(compDoc and Survey)

It would be great if someone could provide me a small usecase to test
the good compatibility with the new library, or maybe, could test it for
me.

Thanks

Gil PORTENSEIGNE