[As an Anonymous User] Default hardcoded landing page

As an anonymous users, particularly one new to SonarQube, I should land on a page that promotes

• logging in to benefit from a better user experience
• the main concepts in SonarQube

The homepage should:

• be simple and generic, i.e. it shouldn't be customizable and shouldn't try to fit everybody's needs
• not offer unique content that can't be found elsewhere
• provide only high-level figures, if any
• be available after login at the home icon/logo in the top-left
• be presented when login is required (e.g. on accessing Dory, a logged-out user would see this page)

Content

• login form at the top of the page

SonarQube main concepts

As an anonymous user, I want to see an introduction in a few words to main concepts of SonarQube:

• Quality Model
• Water Leak Paradigm
• Leak Period
• Quality Gate

and beyond those concepts:

• Quality Profile
• Rules Standards
• How to run analysis on a project?

Global figures

As an anonymous user, I want to see global figures representing the activity of the projects analyzed by SonarQube:

• the number of projects
• the total number of LOC
• the total number of bugs, vulnerabilities and code smells

Nice to have

It makes sense for SonarQube.com to have different front page content. A mechanism to provide different, hard-coded, content below the login form is desirable.