Moved initialization from CMS_DEFAULT_SETUP to CMS_SETUP.initialize.

Rely on setup  "admin.installation_access" to determine who has access to /admin/install .

examples/demo/site/config/cms.ini

@@ -14,6 +14,12 @@ smtp=localhost:25
 #output=@stderr
 
 [modules]
+# Module status
+#   *=on  -> modules are enabled by default
+#   *=off -> modules are disabled by default
+# Default is "on"
+# for each module, this can be overwritten with
+#  module_name= on or off
 *=off
 auth=on
 basic_auth=on
@@ -23,3 +29,7 @@ demo=on
 node=on
 oauth20=on
 openid=on
+
+[admin]
+# CMS Installation, are accessible by "all", "none" or uppon "permission". (default is none)
+installation_access=permission