fix user timetable url

src/main/java/ru/ulstu/user/model/User.java

@@ -232,7 +232,7 @@ public class User extends BaseEntity {
     public String getUserAbbreviate() {
         return String.format(USER_ABBREVIATE_TEMPLATE,
                 lastName == null ? "" : lastName,
-                firstName == null ? "" : firstName.substring(0, 1) + ".",
-                patronymic == null ? "" : patronymic.substring(0, 1) + ".");
+                firstName == null ? "" : firstName.substring(0, 1),
+                patronymic == null ? "" : patronymic.substring(0, 1));
     }
 }