fix(count reviews): handle ',' in numbers

American way of writing numbers is used on site, meaning that
1230 is written '1,230'. Fix count of reviews and comments
based on this.
Add try/except in count method for easier debugging (give beer name
and text extracted).
Some formatting.
Add timing utility for measuring processing time. Estimated at an
average 1 sec/beer page : a bit slow, so need to optimize!