Refactored and update CMS hooks design. (Move from CMS_RESPONSE to CMS_API).

Moved content_types and content_type_webform_managers from CMS_RESPONSE to CMS_API.
Updated the way to output content (node, ...) to html page.
   See CMS_CONTENT_TYPE_WEBFORM_MANAGER.append_cointent_as_html_to (...).
   Added notion of "teaser" (short version of the content), as opposed to full content.
One can use CMS_API.html_encoder ... when possible, same for `formats', ...
Added bridge from CMS_MODULE_API to CMS_API's encoders.
Added new CMS_TAXONOMY_HOOK used to retrieve list of content associated with a specific term.
Moved up to CMS_RESPONSE a few features which was available only in specific descendants.

Added /taxonomy/term/{termid} implementation.

examples/demo/modules/demo/cms_demo_module.e

@@ -10,7 +10,7 @@ class
 inherit
 	CMS_MODULE
 		redefine
-			register_hooks,
+			setup_hooks,
 			initialize,
 			install
 		end
@@ -85,10 +85,10 @@ feature -- Access: router
 
 feature -- Hooks
 
-	register_hooks (a_response: CMS_RESPONSE)
+	setup_hooks (a_hooks: CMS_HOOK_CORE_MANAGER)
 		do
-			a_response.hooks.subscribe_to_menu_system_alter_hook (Current)
-			a_response.hooks.subscribe_to_block_hook (Current)
+			a_hooks.subscribe_to_menu_system_alter_hook (Current)
+			a_hooks.subscribe_to_block_hook (Current)
 		end
 
 	block_list: ITERABLE [like {CMS_BLOCK}.name]

examples/demo/site/themes/bootstrap/assets/css/style.css

@@ -90,3 +90,14 @@ ul.horizontal li {
   border: solid 1px red;
   padding: 5px 2px 5px 2px;
 }
+
+ul.taxonomy-entities {
+  list-style-type: none;
+  padding: 0;
+}
+ul.taxonomy-entities li {
+  padding: 0;
+  margin-top: 5px;
+  margin-bottom: 10px;
+  border-top: dotted 1px #ccc;
+}

examples/demo/site/themes/bootstrap/assets/scss/style.scss

@@ -95,3 +95,14 @@ ul.horizontal {
 	border: solid 1px red;
 	padding: 5px 2px 5px 2px;
 }
+
+ul.taxonomy-entities {
+	list-style-type: none;
+	padding: 0;
+	li {
+		padding: 0;
+		margin-top: 5px;
+		margin-bottom: 10px;
+		border-top: dotted 1px #ccc;
+	}
+}