Added trash feature: Remove or revert a node.

Added Handler to show the current trash nodes for a given user.
An admin can see all the trash nodes.
Updated storage to handle trash and revert nodes.

modules/node/handler/trash_handler.e

@@ -0,0 +1,78 @@
+note
+	description: "Request handler related to /trash "
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	TRASH_HANDLER
+
+
+inherit
+	CMS_NODE_HANDLER
+
+	WSF_URI_HANDLER
+		rename
+			new_mapping as new_uri_mapping
+		end
+
+	WSF_RESOURCE_HANDLER_HELPER
+		redefine
+			do_get
+		end
+
+	REFACTORING_HELPER
+
+create
+	make
+
+feature -- execute
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+			-- Execute request handler
+		do
+			execute_methods (req, res)
+		end
+
+feature -- HTTP Methods
+
+	do_get (req: WSF_REQUEST; res: WSF_RESPONSE)
+			-- <Precursor>
+		local
+			l_page: CMS_RESPONSE
+			s: STRING
+			n: CMS_NODE
+			lnk: CMS_LOCAL_LINK
+		do
+				-- At the moment the template is hardcoded, but we can
+				-- get them from the configuration file and load them into
+				-- the setup class.
+
+			create {GENERIC_VIEW_CMS_RESPONSE} l_page.make (req, res, api)
+
+			if attached current_user (req) as l_user then
+
+				l_page.add_variable (node_api.trash_nodes (l_user), "nodes")
+
+					-- NOTE: for development purposes we have the following hardcode output.
+				create s.make_from_string ("<p>Nodes:</p>")
+				if attached node_api.trash_nodes (l_user) as lst then
+					s.append ("<ul class=%"cms-nodes%">%N")
+					across
+						lst as ic
+					loop
+						n := ic.item
+						lnk := node_api.node_link (n)
+						s.append ("<li class=%"cms_type_"+ n.content_type +"%">")
+						s.append (l_page.link (lnk.title, lnk.location, Void))
+						s.append ("</li>%N")
+					end
+					s.append ("</ul>%N")
+				end
+
+				l_page.set_main_content (s)
+				-- l_page.add_block (create {CMS_CONTENT_BLOCK}.make ("nodes_warning", Void, "/nodes/ is not yet fully implemented<br/>", Void), "highlighted")
+				l_page.execute
+			end
+		end
+
+end