Update requirements versions

Update to django 2.2. Also update a number of older dependencies that
were actually already incorrect before the djago upgrade, and the
deployed versions were newer, but we forgot to update the requirements
file.

diff --git a/requirements.txt b/requirements.txt
index bed81ea5896a3e319e5509885a071888c3677ef0..bc2aae072464529106500a98c8af0929abe9b512 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
-Django>=1.11,<1.12
-django-markdown==0.2.1
+Django>=2.2,<2.3
+django-markdown==0.8.4
 psycopg2==2.7.6
 pycryptodomex>=3.4.7,<3.5
-django_markwhat==1.4
+django_markwhat==1.6.2
 requests-oauthlib==0.4.0
 cvss==1.9
 pytidylib==0.3.2