You have not created a Static only app to point to your Static content.
Static content will be rendered by nginx Front-end Server.
Here are the steps -
In the control panel, create a new app
i.e as 'Symbolic link to static-only app' using
/home/username/webapps/askbot_server/myask/static as the symlink path.
Add the symlink app to your askbot site using '/m' as the URL path.
Then,
Edit /home/username/webapps/askbot_server/apache2/conf/httpd.conf to change this to -
<Directory /home/username/webapps/askbot_server/htdocs>
AddHandler wsgi-script .py
</Directory>
to
WSGIScriptAlias / /home/username/webapps/askbot_server/myask/django.wsgi
Restart your Apache with /home/username/webapps/askbot_server/apache2/bin/restart
Also if you are using posgresql as your database, to enable Full Text Search then run
python manage.py init_postgresql_full_text_search