Encourage webroot antivirus to scan TBB releases

Every time we put out a new TBB, it seems like there are a pile of Webroot users who show up with cryptic complaints like "Couldn't load XPCOM."

Skruffy is pretty sure that showing our TBB releases to Virustotal (#11263 (moved)) isn't going to influence Webroot in any way.

We should find a contact at Webroot and encourage them to integrate "check TBB releases" into whatever internal process they have.

(This would be a great task for a volunteer.)