Online Student Scheduling: Reservation Limit Cap

- do not cap the reservation limit of OnlineReservation any further
  - it is already capped by the config/class limits (XReservation.getLimit() minus the current enrollment, except of the student in question)
  - capping the limit any further can create discrepancies as the config/class limits are computed differently
    (excluding other students, possibly causing the class no longer available errors in the check-assignment action)

src/org/cpsolver/studentsct/online/OnlineReservation.java

@@ -96,4 +96,9 @@ public boolean mustBeUsed() {
             return mustBeUsedIgnoreExpiration();
         return super.mustBeUsed();
     }
+
+    @Override
+    public double getLimitCap() {
+        return getReservationLimit();
+    }
 }