Switch to side-by-side view

--- a/Allura/allura/app.py
+++ b/Allura/allura/app.py
@@ -103,6 +103,7 @@
     :var permissions: a list of named permissions used by the app
     :var sitemap: a list of :class:`SitemapEntries <allura.app.SitemapEntry>` to create an app navigation.
     :var bool installable: toggle if the app can be installed in a project
+    :var bool hidden: toggle if the app should be hidden from the list of tools
     :var Controller self.root: the root Controller used for the app
     :var Controller self.api_root: a Controller used for API access at /rest/<neighborhood>/<project>/<app>/
     :var Controller self.admin: a Controller used in the admin interface
@@ -130,6 +131,7 @@
     default_mount_label='Tool Name'
     default_mount_point='tool'
     ordinal=0
+    hidden = False
     icons={
         24:'images/admin_24.png',
         32:'images/admin_32.png',