Merge branch 'UserStory2' of https://gitlab.com/PPL2017csui/PPLA1 into UserStory2

assets/js/CompanyRegister.jsx

assets/js/VacancyPage.jsx

assets/js/__test__/components/LoginForm-test.jsx

assets/js/components/ModalAlert.jsx

assets/js/components/ModalPendaftaran.jsx

assets/js/components/Vacancy.jsx

assets/js/components/VacancyList.jsx

core/serializers/accounts.py

core/serializers/vacancies.py

core/tests/__init__.py

core/tests/test_accounts.py

core/tests/test_vacancies.py

core/views/accounts.py

core/views/vacancies.py

kape/urls.py