Upgrade python packages

[carlosribas]

• [x] Django==1.11.7 # Django==2.2.19
• [x] PyYAML==3.10 # PyYAML==5.3.1
• [ ] astroid==1.0.1 # package removed
• [x] attrs==17.2.0 attrs==20.3.0
• [x] psycopg2-binary==2.7.4 # psycopg2-binary==2.8.6
• [x] django-cors-headers==2.0.0 # django-cors-headers==3.5.0
• [x] django-filter==1.1.0 # django-filter==2.4.0
• [x] django-maintenancemode==0.10 # django-maintenancemode==0.11.3
• [x] django-rq==0.9.6 # django-rq==2.4.0
• [x] djangorestframework==3.5.3 # djangorestframework==3.11.2
• [ ] djangorestframework-xml # package removed
• [x] djangorestframework-yaml # djangorestframework-yaml==2.0.0
• [ ] djangorestframework-jsonp # the latest version was released in 2015. Currently it does not work with the latest versions of Django and DRF
• [x] logilab-common==0.60.1 # logilab-common==1.8.0
• [ ] pycrypto==2.6.1 # package removed
• [ ] pylint==1.1.0 # package removed
• [x] python-dateutil==2.1 # python-dateutil==2.8.1
• [x] python-memcached==1.58 # python-memcached==1.59
• [x] requests==2.18.1 # requests==2.24.0
• [ ] selenium==3.4.3 # package removed
• [x] six==1.8.0 # six==1.12.0
• [x] sqlparse==0.1.19 # sqlparse==0.4.1
• [ ] versiontools==1.9.1 # package removed
• [ ] simple-crypt==4.1.7 # package removed
• [x] colorhash==1.0.2 # colorhash==1.0.3

code style and test coverage reporting

• [ ] django-jenkins==0.110.0 # package removed
• [ ] pep8==1.7.1 # package removed
• [ ] pyflakes==2.0.0 # package removed

markdown support

• [x] Markdown==2.3.1 # Markdown==3.3.2
• [ ] django-markdown-deux==1.0.5 # this package is unmaintained, but still works
• [x] markdown2==2.3.5 # markdown2==2.3.10

fabric

• [ ] ecdsa==0.13 # package removed
• [ ] Fabric==1.11.1 # package removed
• [ ] paramiko==1.18.5 # package removed

supervisord

• [x] supervisor==3.1.3 # supervisor==4.2.1
• [ ] meld3==1.0.0 # Since Supervisor 4.1.0, the meld3 package is no longer a dependency of Supervisor

python-rq

• [x] rq==0.10.0 # rq==1.7.0
• [x] click==6.7 # click==7.1.2
• [x] redis==2.10.6 # redis==3.5.3

django compressor

• [x] django-appconf==1.0.2 # django-appconf==1.0.4
• [x] django-compressor==2.2 # django-compressor==2.4
• [ ] rcssmin==1.0.6
• [x] rjsmin==1.0.12 # rjsmin==1.1.0

django cache machine

• [x] django-cache-machine==1.0.0 # django-cache-machine==1.1.0

django_performance_testing

• [ ] django-performance-testing==0.5.0 # doesn't support Django 2

json schema

• [ ] jsonschema==2.6.0 # package removed

Moved to requirements_dev.txt

• [x] django-debug-toolbar==1.4.0 # django-debug-toolbar==3.2
• [x] coverage==4.5.1 # coverage==5.5
• [x] mock==3.0.5 # mock==4.0.3

New packages

• [x] gunicorn==20.0.4
• [x] python-dotenv==0.15.0
• [x] whitenoise==5.2.0
• [x] boto3==1.17.54