Make CSS files static

CSS files do not have to be Django templates.
Do not shrink images on big screens

This is unnecessary and leads to some slight image quality degradation.
Merge pull request #232 from aykevl93/css-outside-django

Haal CSS uit Django
Merge branch 'master' of github.com:/karpenoktem/kninfra
agenda: fetch: fix a bug
giedo: villanet: short timeout
agenda/fetch: actually fix the bug
remove stray cal-to-php
Revert "home -> openweekPoster2014"

This reverts commit b2b512cc163508eeffece3b71779f82ad369fea3.
Merge branch 'master' of github.com:/karpenoktem/kninfra
zxcvbn: one guess per second