Hello,

Our french developper team is going to use RB, but the shorcuts [ and ] for 
privous and next comments are not working on a FR keyboard (I assume it's 
because "[" = "AltGr + (" and "]" = "AltGr + )" on a french keyboard).

I added in /var/www/reviewboard/htdocs/media/rb/js/diffviewer.js the keys 
"x" and "c" for previous and next comment, but I have two problem :
- What will happen when I will have to do a easy_install -U ReviewBoard 
followed by a rb-site upgrade ? Will my change in the code overwritten ?
- I guess it would be nice to allow a personalisation of these shortcuts in 
the admin dashboard.

Thank you very much for the good work !