Changelog for January 5

A new year and some new improvements for Pipeline!

* Files tab - From your feedback we learned that many users didn't realize Pipeline offers powerful tools for file management. To make this more obvious, we added a Files tab, which lists all the files uploaded in a project. Every upload has a "preview" and "download" link, along with pertinent info like file size, who uploaded it, and where it was uploaded. (If no files have been uploaded yet, the tab explains how.)

* Banning/untrusting yourself - Trusted users can no longer untrust or ban themselves. This was a silly bug that we overlooked, but no longer!

* Username in header - Per user requests, you'll now see your username in the header when you're logged in.

* File links - We fixed a bug where the names of uploaded files were broken links.