1. Add on_delete parameter for OneToOneField and ForeignKey at models.
   on_delete param becomes mandatory at Django 2.
2. Change "import views_constants" to "from core.views import views_constants".
   Python 3 didn't support direct module importing.
3. Replace "@list_route(" to "@action(detail=False," and replace "@detail_route(" to "@action(detail=True,".
   Django REST Framework removed those decorators and replaced it with @action.
4. Replace "basestring" type to "str" as Python 3 now supports unified string type.
5. Use 'rb' instead of 'r' mode to read file at _create_test_file at test_accounts.py
   Python 3 has their own bytes type that not enforcing to encode things out.

1606875926 106-Fitur menampilkan error validasi waktu buka lowongan pekerjaan ketika waktu buka dan waktu tutup lowongan sama

pull dari master

[REFACTOR] eremove unused local variable core/tests/test_feedbacks.pyclassName assets/js/components/InfoModal.js

1606833476 95 - [Sprint 2] Fitur menampilkan error validasi waktu membuat lowongan KP agar waktu buka lowongan tidak kurang dari hari ini

Sebagai perusahaan, saya ingin bisa mencantumkan alasan saya menolak sebuah lamaran sehingga pelamar tersebut bisa mengetahui kekurangannya dan bisa mengevaluasi diri ketika melamar pekerjaan ke depannya.

# Conflicts:
#   core/tests/test_create_vacancies.py

pull dari master

finished implementing validation feature