Hmmm. What's uPortal's convention for the custom CSS of portlets bundled in uPortal-war? Should I have left it in the JSP file as a `<style text="type/css">` attribute rather than refactoring it into a separate CSS file? Activity seems to be the only portlet that even has custom CSS going on.

If it belongs in a separate file, how might the Resource Server factor into that? I couldn't think of how to put the external CSS file into the RS's include-file that aggregates all the CSS files without having it apply to every other portlet in uPortal-war. I think that was my reasoning for creating a separate, pre-minified version of the file.

I can definitely push a second commit to this pull request to rectify all these issues (including the `<!--` comments and accidental commented-out `<link>` tag) once I know what to change!