Merge pull request #2 from AlexTi/master

added purecss
prettification of everything, removed purecss
some adjustments to layout and buttons
minor edits to layout
added archive, display only part of the stories on frontpage
add title, missing migration
centered new story button, removed edit link from edit page
Update README.md
Tidy up the Gemfile.
Update Gemfile.lock.
Remove docs and production from database.yml.

We don't need to explain how to install sqlite3 because it's part of the
Gemfile. We also don't need the production database configuration because
that depends on where it's deployed.
Read secret token from environment in production.

When in production we would like to read the secret token from the environment
so we can keep reusing the values between deploys without having to commit it
to a public repository.
Merge pull request #9 from Manfred/cleanups/database-configuration

Remove docs and production from database.yml.
Explain how to set a secret token on Heroku.

Before deploying you need to set a secret once. This documents how to generate
a secret and configure it in Heroku.
Remove unused and pre-baked documentation.

Weeding out unneeded documentation keeps focus on the important words in the
project.
use string interpolation
Merge pull request #8 from Manfred/cleanups/gemfile

Clean up the Gemfile
Merge pull request #10 from Manfred/cleanups/documentation

Remove unused and pre-baked documentation.
Merge pull request #12 from gregmolnar/refactor

use string interpolation
Merge pull request #11 from Manfred/features/safe-secret-token

Using a safe secret token