Add user model
Add templates for flash messages
Add auth views and templates
Merge pull request #12 from fastmonkeys/feature/authentication

Feature/authentication
Add like model
Add like_count property to comments
Add API for liking comments
Use english in api urls
Refactor tests
Add tests for model default values
Add likes to comments in templates
Add new API for liking

Changes like API urls to users/<id>/links/likes.
Separates create and delete API endpoints.
Merge pull request #13 from fastmonkeys/feature/liking-a-comment

Feature/liking a comment
Improve gulp tasks
Add published, opens_at and closes_at to hearing
Add styles and template for hearing list
Add list of hearings to frontpage
Fix navbar and footer links
Small style fixes
Disable e2e tests on CI machine

There is problems when CI tries to start python server for e2e test.
For now there isn't any real e2e tests so the tests are just disabled
until the problem is solved.