Makes the wiki sidebar editable (#5208).

The content of the wiki page named 'Sidebar' is rendered in the sidebar if it exists. Permission to edit protected pages is required to create this page.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3632 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/wiki_controller.rb

@@ -33,7 +33,7 @@ class WikiController < ApplicationController
     page_title = params[:page]
     @page = @wiki.find_or_new_page(page_title)
     if @page.new_record?
-      if User.current.allowed_to?(:edit_wiki_pages, @project)
+      if User.current.allowed_to?(:edit_wiki_pages, @project) && editable?
         edit
         render :action => 'edit'
       else