move Wall to own resource

app/views/layouts/project_resource.html.haml

@@ -41,7 +41,7 @@
 
         - if @project.wall_enabled
           = nav_link(path: 'projects#wall') do
-            = link_to 'Wall', wall_project_path(@project)
+            = link_to 'Wall', project_wall_path(@project)
 
         - if @project.snippets_enabled
           = nav_link(controller: :snippets) do

app/views/projects/wall.html.haml

@@ -1,2 +0,0 @@
-%div.wall_page
-  = render "notes/reversed_notes_with_form"

app/views/walls/show.html.haml

@@ -0,0 +1,11 @@
+%div.wall-page
+  %ul.well-list.notes
+  .notes-busy.js-notes-busy
+
+  .js-main-target-form
+  = render "notes/form"
+
+:javascript
+  $(function(){
+    Wall.init(#{@project.id});
+  });