* geis does not work with channels2 and never will be (it has to be python now)
* pytest
* rewrote cache system
* use username instead of pk for admin user in tests
- Use ckeditor for assignment description field (e.g. for candidatures
using html).
- Use 2 decimal places for percentage of voting results (motions/assignments)
- Allow css style attributes 'float' and 'padding'.
- Remove progress bar in election result slide to get more space (height)
for candidate rows.
