Update beautifulsoup4 requirement from ==4.6.* to ==4.7.* (#357)
Update beautifulsoup4 requirement from ==4.6.* to ==4.7.* (#357)

Updates the requirements on [beautifulsoup4](http://www.crummy.com/software/BeautifulSoup/bs4/) to permit the latest version.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
sanoma/django-arctic,sanoma/django-arctic,sanoma/django-arctic