Link to upgrade

See merge request !333

Mvp

Fixes #163

@sytses From where do we want to link this page? And is there a quick way to find all older mvps?

/cc @mvb

See merge request !330

Track clicks

Fixes #165

It takes a day before we can see whether it's actually working in Google Analytics.

This was branched off from !331

See merge request !332

Add Patricio to Team

Created a blog post to add introduce myself and added me to the team page.

See merge request !328

Created post to introduce myself, added myself to the team page and edited .gitignore to include the .idea folder.

Features

Adds `/features` page.

This page is meant to replace the `/gitlab-ce` page and possibly the `/gitlab-ee` page as well.

It is not linked from anywhere yet, as it's quite big and we should have a chance to see whether it can replace other pages. I suggest we deploy it, review it (make necessary changes) and make a direct link in the navigation bar (or from elsewhere).

See merge request !327

Item detail hover

See merge request !326

Happiness

See merge request !325