Resolve "Provide import functionality via frontend for reviewers"

Closes #189 (closed)

functional_tests/test_import.py

-import json
 import os
 from django.test import LiveServerTestCase
 from selenium import webdriver
-from selenium.webdriver.common.by import By
-from selenium.webdriver.remote.webelement import WebElement
-from selenium.webdriver.support import expected_conditions as ec
 from selenium.webdriver.support.ui import WebDriverWait
 
 from core import models