Improve documentation

[kbrabrand]

Security

• Fix security warnings from npm

Bugs

• Fix broken example project 😱– outdated schema
• Fix broken travis build
• Remove/add content for "Navigation" chapters
• Syntax error in code examples in documentation. Run all of them through the validator to make sure they're all correct and that they do what we say they do

Content

• Document the process of setting up a new project, installing losen and getting started
• Rewrite the Getting started chapter. "The wizard component" is a bit hard to read, and the rest is not really very good either.
• Use bullet/numbered lists instead of long paragraphs. Throughout the storybook
• Rework the building block page. Too hard to read, lack of hierarchy (heading levels and such) and confusing with the list of properties that is shared amongst all the input types