README fix.
Put output files in the directory specified with --infodump_dir.
Google AppEngine version WIP.
Changed ngram data file format.

Previous format was one file per site.  New format is one big ngram
file, but each record has a new field: site.

This will make it a little easier to use the AppEngine bulkloader.
GAE app works, bulk uploader works.
Added /static url routing.  Turned on threadsafe.
Modified tokenizer to not require nltk.
Fixed bug where GAE was not tokenizing queries.
Formatting fix.
Fixed links.
Added about page.
Updated README for new data format and web server.