Spanish TBB contains all Torbutton and Tor Launcher locale files

(Presumably the English TBB contains all of Torbutton's locale files, too.)

Surely we don't need to ship all Torbutton locale files in all TBBs. I wonder how much they enlarge the tarball -- if they're worth shipping, they should be significant.

This is a Bundle build-script issue, not a ...Button issue.