cosmetic change in dumpers.py--- different name of database column
tokenizer caching depends on thesaurus name, too (when one is used)
refactored joblib caching in tokenizer, commit broken
added utf8 encoding to tokenizer, which i forgot in the previous commit
largely finished the refactoring from the previous commits

1. data is pre-tokenized and joblib cached when passed into the main pipeline, which should speed things up consideraby
2. the thesaurus is stored simply as a dict and NOT a defaultdict anymore to avoid pickling problems-- parsing may be cached with joblib in the future
3. consolidation still NOT working
fixed consolidator after refactoring in previous commits
continued work on refactoring, experiment 28 now runs
fixed half the failing unit tests after major refactoring yesterday
fixed other half of failing unit tests after major refactoring yesterday
updated conf files to reflect yesterday's changes