#3 Browser recognition is sketchy

[Nicolas Christin]

The code for browser recognition is sub-par.
Furthermore, a lot of exotic browsers are simply not
recognized. I recognize this is a mess since there's no
real convention regarding agent naming in the requests,
but it can be improved. (This is not really a bug, more
something that has to be improved over time). A good
idea could be to merge the list at
browserlist.browser.org with what we already have.