Error handling and "smart quotes"

[wkdewey]

• Queries that mistakenly include "smart quotes" result in an error in Elasticsearch that results in Rails sites throwing an error (because @res contains the 400 bad request. Example is "&q=text%3A%22future+the+only+authentic+and+perfect.%E2%80%9D" quotes are expected to be %22 which the API and ES can handle.
• IN general, can 400 errors (and other ES errors) be handled better? Either with the contents of @res and/or how they are handled by Rails.