Remove type from migration

It breaks postgres and it doesn't make sense because we're just about to
delete the column anyways.
Add a little bit to reset the autoincrement for postgres
Fix the previous migration
Fix migration (again) to start with the next *available* id
Fix int in sqlite3 vs string in PostgreSQL
Remove the column from the appropriate table
Remove traces of old Polymorphic association
Add debug questionmark to featured articles
Remove the other font. Use Museo Sans for everything.
A wild About page appears!
Add a little section about the whole Eternal September thing
Add custom 404 and 500 pages