If you are updating on a machine please follow these steps
*BEFORE* updating your code to this commit.

If you are installing on a fresh database and do not need to think
about existing data, ignore the following and proceed as usual.

1. Run the following migrations:
```
python manage.py migrate --fake scipost zero
python manage.py migrate --fake notifications zero
python manage.py migrate --fake partners zero
python manage.py migrate --fake affiliations zero
python manage.py migrate --fake commentaries zero
python manage.py migrate --fake comments zero
python manage.py migrate --fake finances zero
```

2. *** NOW UPDATE/PULL GIT ***
3. Run: `python manage.py migrate --fake-initial`

This commit contains the removal of html from 'the important' models
 or at least contains replacements for model methods such as `print_as...()`,
 etc. etc. Except for `header_as_li`, methods are not completely deleted yet.

> Fixed/Improved the nested comments and comments in reports. They were
 not shown before.

> Improved DRY principle in several templates/codes.

> Created Managers in the `submissions` app to filter i.e. "pool" submissions
 (so exclude potential author from judging on his own publication) for the
 pool view in the query; not in the template!

> More...