Wiki permissions changes

[Nick Burch]

Hi All

Just to let everyone know that we've made some changes to permissions on the 
Tika wiki, to hopefully avoid the recent repeated spam attacks on it.

As such, before you can make changes to the wiki (edit pages, create new ones 
etc), your wiki user account needs to be added to the Contributors Groups. Once 
added, you'll be able to make changes from then on. (This is the setup that 
many ASF wikis now use)

So, if you would like to be able to make changes to the Tika wiki in the near 
future, please reply to this email with your wiki username and we'll grant you 
appropraite karma. In the future, anyone new needing karma for the wiki just 
needs to drop an email to one of the lists with their wiki username, and we'll 
add them in

Nick