Fix total classroom needed math in classroom count

Related: simcaq/SCRUM#408
Problema 3 reportado em 2018-07-11

src/libs/routes/classroomCount.js

@@ -393,7 +393,7 @@ classroomCountApp.post('/', rqf.parse(), (req, res, next) => {
             // Total de salas
             educationLevel.enrollment.total_classrooms_needed = (educationLevel.enrollment.full_period_classes + educationLevel.enrollment.day_classes/2);
 
-            if(educationLevel.enrollment.night_classes > educationLevel.enrollment.day_classes) educationLevel.enrollment.total_classrooms_needed += (educationLevel.enrollment.night_classes - educationLevel.enrollment.day_classes);
+            if(educationLevel.enrollment.night_classes > (educationLevel.enrollment.day_classes/2)) educationLevel.enrollment.total_classrooms_needed += (educationLevel.enrollment.night_classes - (educationLevel.enrollment.day_classes/2));
 
             educationLevel.enrollment.total_classrooms_needed = Math.ceil(educationLevel.enrollment.total_classrooms_needed);