fix nickel parsing issue where there was no implied date; add some helper methods; return updated tweets from nlp_ methods instead of boolean; add hook for location parsing, not using it yet
use inspect
apply all commands, not just the first
move nokogiri above pg gem to get rid of libxml version warning on startup
refactor pipeline to use TweetHolder
location parsing starting to be tractable
extract phrases
checkpoint
refactor out of ActiveRecord
use statefulness of classes
tweak