working on translation of system messages

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

bookmark/src/main/java/de/srsoftware/umbrella/bookmarks/SqliteDb.java

@@ -125,7 +125,7 @@ CREATE TABLE IF NOT EXISTS {0} (
 			if (rs.next()) result = Bookmark.of(rs);
 			rs.close();
 			if (result != null) return result;
-			throw UmbrellaException.notFound("No bookmark with urlId {0}",id);
+			throw UmbrellaException.notFound("no_bookmark_for_urlid",id);
 		} catch (SQLException e) {
 			throw new UmbrellaException("Failed to load bookmark");
 		}