Code review comment for lp:~deryck/launchpad/hot-bugs-list-color-icons-439128

I've updated the branch to fix both bug 393825 and bug 397457. I fixed the tales formatter for icon to include a nbsp and updated the js generating the privacy icon to also add an nbsp. Some minor style changes were required on the bug page to make sure the privacy icon didn't get a link hover underline.

I'm running tests now to see fallout from these changes.