[VOTE] Modify Header copyright

[Vincent Massol]

Hi,

The current header copyright says:

"Copyright 2006-2007, XpertNet SARL, and individual contributors as  
indicated by the contributors.txt."

2 issues:
- The sentence is not english
- We don't have such a file

I propose that we change it in favor of:

"Copyright 2006-2007, XpertNet SARL, and individual contributors."

Main Reason:

- We don't specify where the contributors are listed which means we  
can decide to change that location. For example a list of  
contributors is on http://www.xwiki.org/xwiki/bin/view/Community/ 
HallOfFame#HContributors but it's far from being accurate. Tomorrow  
we may use another strategy or another location and we'd rather not  
change all headers. So better not specify where we define them.  
Another location is SVN.

Here's my +1 to that.

I also propose that we continue listing contributors on that  
HallOfFame page. Unfortunately I've been the only one adding names  
there. I need help.

Thanks
-Vincent