at least three characters for city autocomplete
added city model
added region model
removed columns
added city_id to posts
added gems
es_api to connect with elasticsearch
worker for handling update documents to elasticsearch
rake task to reindex elasticsearch
changes in views controller and model for elasticsearch
conflicts
removed hardcoded ip
added dalli gem for caching
es client connection in production
backslash in subcategory name routing
gems update
logging ip