Refactor the way a defaut wiki menu item gets created:

* move default wiki menu item to wiki class from enabled modules
* as we now ALWAYS have a menu item for a wiki, check for enabled modules when rendering a project menu

Conflicts:
	app/models/enabled_module.rb
	app/models/wiki.rb

app/models/enabled_module.rb

@@ -45,7 +45,7 @@ class EnabledModule < ActiveRecord::Base
     when 'wiki'
       # Create a wiki with a default start page
       if project && project.wiki.nil?
-        wiki = Wiki.create(:project => project, :start_page => 'Wiki')
+        Wiki.create(:project => project, :start_page => 'Wiki')
       end
     end
   end

app/models/wiki.rb

@@ -34,7 +34,6 @@ class Wiki < ActiveRecord::Base
   has_many :wiki_menu_items, :class_name => 'WikiMenuItem', :dependent => :delete_all, :order => 'name'
   has_many :redirects, :class_name => 'WikiRedirect', :dependent => :delete_all
 
-
   acts_as_watchable
 
   accepts_nested_attributes_for :wiki_menu_items,
@@ -114,6 +113,7 @@ class Wiki < ActiveRecord::Base
     wiki_menu_item = wiki_menu_items.find_or_initialize_by_title start_page, name: 'Wiki'
     wiki_menu_item.new_wiki_page = true
     wiki_menu_item.index_page = true
+
     wiki_menu_item.save!
   end
 end

features/step_definitions/wiki_steps.rb

@@ -29,7 +29,7 @@
 Given /^the [Pp]roject "([^\"]*)" has 1 [wW]iki(?: )?[pP]age with the following:$/ do |project, table|
   p = Project.find_by_name(project)
 
-  p.wiki.create! unless p.wiki
+  p.wiki = Wiki.create unless p.wiki
 
   page = FactoryGirl.create(:wiki_page, :wiki => p.wiki)
   content = FactoryGirl.create(:wiki_content, :page => page)
@@ -75,7 +75,7 @@ end
 
 Given /^the wiki page "([^"]*)" of the project "([^"]*)" has the following contents:$/ do |page, project, table|
   project = Project.find_by_name project
-  wiki = project.wiki || project.wiki.create!
+  wiki = project.wiki || Wiki.create
   wp = wiki.pages.find_or_create_by_title(page)
   wc = wp.content || wp.create_content
   wc.update_attribute(:text, table.raw.first)

lib/redmine/menu_manager/menu_helper.rb

@@ -43,6 +43,7 @@ module Redmine::MenuManager::MenuHelper
   end
 
   def build_wiki_menus(project)
+    return unless project.enabled_module_names.include? 'wiki'
     project_wiki = project.wiki
 
     WikiMenuItem.main_items(project_wiki).each do |main_item|