Added auth_api: CMS_AUTHENTICATION_API, and for now moved registration instructions inside.

Added authentication module webapi, to provide registration via webapi.
Improved the roles display by providing table of permissions if asked.
Added various links in primary tabs to navigate back to roles or users, depending on the page.
Added datetime to-from string converters in CMS_ENCODERS.
Start removing CMS_ADMINISTRABLE.
Added permission to use simple core access token.
Added webapi for users: list, new, register.

modules/auth/cms_authentication_module_webapi.e

@@ -22,7 +22,7 @@ feature -- Security
 			-- List of permission ids, used by this module, and declared.
 		do
 			Result := Precursor
-			Result.force ("admin users")
+			Result.force ("account register")
 		end
 
 feature {NONE} -- Router/administration
@@ -30,18 +30,9 @@ feature {NONE} -- Router/administration
 	setup_webapi_router (a_router: WSF_ROUTER; a_api: CMS_API)
 			-- <Precursor>
 		do
-			a_router.handle ("/info", create {WSF_URI_AGENT_HANDLER}.make (agent handle_info (?, ?, a_api)), a_router.methods_get)
-		end
-
-feature -- Request handling
-
-	handle_info (req: WSF_REQUEST; res: WSF_RESPONSE; api: CMS_API)
-		local
-			m: WSF_HTML_PAGE_RESPONSE
-		do
-			create m.make
-			m.set_body ("{%"info%":%"" + api.setup.site_name + "%"}")
-			res.send (m)
+			if attached module.auth_api as l_auth_api then
+				a_router.handle ("/account/register", create {CMS_USER_REGISTER_WEBAPI_HANDLER}.make_with_auth_api (l_auth_api), a_router.methods_post)
+			end
 		end
 
 end