start getting array stuff set up
start on text type that uses cosine field distance
cosine similarity working for text and sets as well as tfidf blocking, closes #113 and #217
update docs and datamodel
documentation and removing unused code
latlong
fix outdate import
tests for serializing
 apt-get cython for faster travis
clean up field defintion classes
make import training more generic (need not have file name)
make sure serializer is same wether python2.6 or 2.7
don't remember cached vectors when we pickle cosine
Merge pull request #254 from datamade/arrays

Arrays