ALF-4785: Update the Help URLs for 3.4 Enterprise Beta and Enterprise

ALF-4583: Online Help URLs too hard-coded
  Share: Help URLs split out into separate config file, which is overridden for Enterprise deployments.
  Explorer: Help URL is templated and populated when first queried.
  Office add-in webscripts: Help URL is templated via I18N properties.
  Office add-in client: Not currently possible due to proprietary build and installer build steps.
  AWE: Also not currently possible without significant refactoring.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@22892 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/web/scripts/office/navigation.js

@@ -14,7 +14,6 @@ var OfficeNavigation =
    
    init: function()
    {
-      $('overlayPanel').setStyle('opacity', 0);
       OfficeNavigation.setupToggles();
       OfficeNavigation.setupCreateSpace();
       OfficeNavigation.getDocumentNames();
@@ -24,7 +23,6 @@ var OfficeNavigation =
       {
          OfficeNavigation.showCreateSpace();
       }
-
    },
    
    setupToggles: function()

source/web/scripts/office/office_addin.js

@@ -11,6 +11,8 @@ var OfficeAddin =
    
    init: function()
    {
+      $('overlayPanel').setStyle('opacity', 0);
+
       window.queryObject = OfficeAddin.toQueryObject(document.location.search);
       window.contextPath = OfficeAddin.getContextPath();
       window.serviceContextPath = OfficeAddin.getServiceContextPath();