added: generic html template: index_generic.html

(config option: templates_index_generic)
this is a generic template without additional site-css (only uikit),
at the moment used only in ckeditor file browser

added: to Request class: index_template (std::wstring) - a name of an index html template

winixd/functions/cat.cpp

@@ -51,6 +51,9 @@ Cat::Cat()
 
 void Cat::MakeGet()
 {
+	// IMPROVE ME this probably should be set for all winix functions
+	cur->request->html_template = cur->request->last_item->html_template;
+
 	if( !cur->request->is_item )
 	{
 		log << log1 << "Content: cat function requires an item" << logend;