Wiki links can now refer other project wikis, using this syntax:

[[project:]] -> wiki starting page
[[project:page]]
[[project:page|text]]
where 'project' is the project name or identifier.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@643 e93f8b46-1217-0410-a6f0-8f06a7374b81