increased the number of fields from twitter JSON objects held in the lucene index.
fixed access to lang element in JSON status objects.
added addition status slots.
added addition slots to index.
additional field info added to Statuses and index.
additional index fields inserted.
finalizing intial fields for the index.
fixed an error in parsing lat/long (i.e. they were reversed).
removed a few fields from indexing (lat/long, and created_at).
Merge branch 'prototype-mefron' into trec2013-api