Overhauled dictionary processing pipeline (scripts in data-scripts).

• zxcvbn now counts 30k top passwords from Xato.net's 10M password corpus instead of an earlier list of 10k passwords.
• zxcvbn now counts top words from offline wikipedia dumps. Instead of 55k words from the wiktionary tv and movie study, zxcvbn now includes top 30k tokens from the study, and top 30k tokens from en wikipedia.
• Data processing scripts are easier to use and better documented. It's now easy to, for example, add dictionaries obtained from wikipedia dumps in other locales.