Fixed link for Oauth sign with.

Added administration pages for OAuth20 module.

modules/oauth20/cms_oauth_20_consumer.e

@@ -38,8 +38,18 @@ feature {NONE} -- Initialization
 			set_name ("")
 		end
 
+feature -- Status report
+
+	has_id: BOOLEAN
+		do
+			Result := id > 0
+		end
+
 feature -- Access
 
+	id: INTEGER_64
+			-- unique identifier.
+
 	endpoint: READABLE_STRING_8
 			-- 	Url that receives the access token request.
 
@@ -68,9 +78,6 @@ feature -- Access
 	name: READABLE_STRING_32
 			-- consumer name.
 
-	id: INTEGER_64
-			-- unique identifier.
-
 feature -- Element change
 
 	set_extractor (a_extractor: like extractor)