Resuelve bug de objetivos con el mismo nombre y pone en orden los semestres en 3yp

app/controllers/Objective2Controller.php

 
 			),
 			array(
-				'text' => 'required|string',
+				'text' => 'required|string|unique:objectives',
 
 				'outcome_id' => 'required|array',
 				'program_id' => 'required|array'

app/controllers/ThreeYearPlanController.php

           ->where('typ_semester_outcome.typ_program_id', $typ_program_id)
           ->where('typ_semester_outcome.outcome_id', $outcome_->id)
           ->select('typ_semester_outcome.id', 'typ_semester_outcome.semester_id', 'semesters.code', 'semesters.name')
+          ->orderBy('semesters.code')
           ->get();
         // buscar info sobre selected_semsters
         $outcome_->selected_semesters = array();
           ->where('typ_semester_outcome.typ_program_id', $typ_program_id)
           ->where('typ_semester_outcome.outcome_id', $outcome_->id)
           ->select('typ_semester_outcome.id', 'typ_semester_outcome.semester_id', 'semesters.code', 'semesters.name')
+          ->orderBy('semesters.code')
           ->get();
         // buscar info sobre selected_semsters
         $outcome_->selected_semesters = array();