Imrove settings loading
Run devserver on port 80

This makes is possible to use local domain names like thusoy.local, that
are recognizes by facebook as valid domains for auth.
Fix blog blueprint name
Freeze dependencies
Remove python 3.3 and add 3.4 and pypy to build matrix
Add db migrations using alembic/flask-migrate
Refactor tests a bit
First stab at subpages
Work on subpages